forked from github/verilator
Internals: Detab and fix spacing style issues. No functional change.
When diff, recommend using "git diff --ignore-all-space" When merging, recommend using "git merge -Xignore-all-space"
This commit is contained in:
Wilson Snyder
parent
6c5cc885a6
commit
58dfe9d071
587
src/V3PreLex.l
587
src/V3PreLex.l
@ -28,12 +28,12 @@
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#include "V3PreProc.h"
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#include "V3PreLex.h"
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V3PreLex* V3PreLex::s_currentLexp = NULL; // Current lexing point
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V3PreLex* V3PreLex::s_currentLexp = NULL; // Current lexing point
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#define LEXP V3PreLex::s_currentLexp
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#define YY_INPUT(buf,result,max_size) \
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result = LEXP->inputToLex(buf,max_size);
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result = LEXP->inputToLex(buf, max_size);
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// Accessors, because flex keeps changing the type of yyleng
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char* yyourtext() { return yytext; }
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@ -45,7 +45,7 @@ static void linenoInc() {LEXP->linenoInc();}
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static bool pedantic() { return LEXP->m_pedantic; }
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static void yyerror(char* msg) { LEXP->curFilelinep()->v3error(msg); }
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static void yyerrorf(const char* msg) { LEXP->curFilelinep()->v3error(msg); }
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static void appendDefValue(const char* t, size_t l) { LEXP->appendDefValue(t,l); }
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static void appendDefValue(const char* t, size_t l) { LEXP->appendDefValue(t, l); }
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/**********************************************************************/
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%}
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@ -65,215 +65,215 @@ static void appendDefValue(const char* t, size_t l) { LEXP->appendDefValue(t,l);
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/* drop: Drop Ctrl-Z - can't pass thru or may EOF the output too soon */
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ws [ \t\f\r]
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wsn [ \t\f]
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crnl [\r]*[\n]
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quote [\"]
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tickquote [`][\"]
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ws [ \t\f\r]
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wsn [ \t\f]
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crnl [\r]*[\n]
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quote [\"]
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tickquote [`][\"]
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/* Where we use symb/symbdef, we must also look for a `` join */
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/* Note in the preprocessor \ESCaped is *not* always special; mantis1537/bug441 */
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symb ([a-zA-Z_][a-zA-Z0-9_$]*|\\[^ \t\f\r\n]+)
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symbdef ([a-zA-Z_][a-zA-Z0-9_$]*|\\[^ \t\f\r\n`]+)
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word [a-zA-Z0-9_]+
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drop [\032]
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bom [\357\273\277]
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symb ([a-zA-Z_][a-zA-Z0-9_$]*|\\[^ \t\f\r\n]+)
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symbdef ([a-zA-Z_][a-zA-Z0-9_$]*|\\[^ \t\f\r\n`]+)
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word [a-zA-Z0-9_]+
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drop [\032]
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bom [\357\273\277]
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/**************************************************************/
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/**************************************************************/
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%%
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<INITIAL>{bom} { }
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<INITIAL,STRIFY>^{ws}*"`line"{ws}+.*{crnl} { LEXP->lineDirective(yytext);
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return(VP_LINE); }
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<INITIAL>{bom} { }
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<INITIAL,STRIFY>^{ws}*"`line"{ws}+.*{crnl} { LEXP->lineDirective(yytext);
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return VP_LINE; }
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/* Special directives we recognize */
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<INITIAL>"`define" { return(VP_DEFINE); }
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<INITIAL>"`else" { return(VP_ELSE); }
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<INITIAL>"`elsif" { return(VP_ELSIF); }
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<INITIAL>"`endif" { return(VP_ENDIF); }
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<INITIAL>"`ifdef" { return(VP_IFDEF); }
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<INITIAL>"`ifndef" { return(VP_IFNDEF); }
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<INITIAL>"`include" { return(VP_INCLUDE); }
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<INITIAL>"`undef" { return(VP_UNDEF); }
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<INITIAL>"`undefineall" { return(VP_UNDEFINEALL); }
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<INITIAL>"`error" { if (!pedantic()) return (VP_ERROR); else return(VP_DEFREF); }
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<INITIAL,STRIFY>"`__FILE__" { static string rtnfile;
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rtnfile = '"'; rtnfile += LEXP->curFilelinep()->filename();
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rtnfile += '"'; yytext=(char*)rtnfile.c_str(); yyleng = rtnfile.length();
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return (VP_STRING); }
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<INITIAL,STRIFY>"`__LINE__" { static char buf[10];
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sprintf(buf, "%d",LEXP->curFilelinep()->lineno());
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yytext = buf; yyleng = strlen(yytext);
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return (VP_TEXT); }
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/* Special directives we recognize */
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<INITIAL>"`define" { return VP_DEFINE; }
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<INITIAL>"`else" { return VP_ELSE; }
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<INITIAL>"`elsif" { return VP_ELSIF; }
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<INITIAL>"`endif" { return VP_ENDIF; }
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<INITIAL>"`ifdef" { return VP_IFDEF; }
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<INITIAL>"`ifndef" { return VP_IFNDEF; }
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<INITIAL>"`include" { return VP_INCLUDE; }
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<INITIAL>"`undef" { return VP_UNDEF; }
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<INITIAL>"`undefineall" { return VP_UNDEFINEALL; }
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<INITIAL>"`error" { if (!pedantic()) return VP_ERROR; else return VP_DEFREF; }
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<INITIAL,STRIFY>"`__FILE__" { static string rtnfile;
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rtnfile = '"'; rtnfile += LEXP->curFilelinep()->filename();
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rtnfile += '"'; yytext = (char*)rtnfile.c_str(); yyleng = rtnfile.length();
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return VP_STRING; }
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<INITIAL,STRIFY>"`__LINE__" { static char buf[10];
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sprintf(buf, "%d", LEXP->curFilelinep()->lineno());
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yytext = buf; yyleng = strlen(yytext);
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return VP_TEXT; }
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/* Pass-through strings */
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<INITIAL>{quote} { yy_push_state(STRMODE); yymore(); }
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<STRMODE><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated string"); yyleng=0; yyterminate(); }
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<STRMODE>{crnl} { linenoInc(); yyerrorf("Unterminated string"); BEGIN(INITIAL); }
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<STRMODE>{word} { yymore(); }
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<STRMODE>[^\"\\] { yymore(); }
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<STRMODE>[\\]{crnl} { linenoInc(); yymore(); }
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/* Pass-through strings */
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<INITIAL>{quote} { yy_push_state(STRMODE); yymore(); }
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<STRMODE><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated string"); yyleng=0; yyterminate(); }
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<STRMODE>{crnl} { linenoInc(); yyerrorf("Unterminated string"); BEGIN(INITIAL); }
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<STRMODE>{word} { yymore(); }
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<STRMODE>[^\"\\] { yymore(); }
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<STRMODE>[\\]{crnl} { linenoInc(); yymore(); }
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<STRMODE>[\\]{wsn}+{crnl} { yyless(1); LEXP->curFilelinep()->v3warn(BSSPACE, "Backslash followed by whitespace, perhaps the whitespace is accidental?"); }
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<STRMODE>[\\]. { yymore(); }
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<STRMODE>{quote} { yy_pop_state();
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if (LEXP->m_parenLevel || LEXP->m_defQuote) {
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LEXP->m_defQuote=false; appendDefValue(yytext, yyleng); yyleng=0;
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} else return (VP_STRING); }
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<STRMODE>[\\]. { yymore(); }
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<STRMODE>{quote} { yy_pop_state();
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if (LEXP->m_parenLevel || LEXP->m_defQuote) {
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LEXP->m_defQuote=false; appendDefValue(yytext, yyleng); yyleng=0;
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} else return VP_STRING; }
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/* Stringification */
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<INITIAL>{tickquote} { yy_push_state(STRIFY); return VP_STRIFY; }
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<STRIFY><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated '\""); yyleng=0; yyterminate(); }
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<STRIFY>"`\\`\"" { return VP_BACKQUOTE; }
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<STRIFY>{quote} { yy_push_state(STRMODE); yymore(); }
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<STRIFY>{tickquote} { yy_pop_state(); return VP_STRIFY; }
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<STRIFY>{symbdef} { return (VP_SYMBOL); }
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<STRIFY>{symbdef}`` { yyleng-=2; return (VP_SYMBOL_JOIN); }
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<STRIFY>"`"{symbdef} { return (VP_DEFREF); }
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<STRIFY>"`"{symbdef}`` { yyleng-=2; return (VP_DEFREF_JOIN); }
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<STRIFY>`` { yyleng-=2; return (VP_JOIN); }
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<STRIFY>{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return(VP_WHITE); }
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<STRIFY>{wsn}+ { return (VP_WHITE); }
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<STRIFY>{drop} { }
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<STRIFY>[\r] { }
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<STRIFY>. { return (VP_TEXT); }
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/* Stringification */
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<INITIAL>{tickquote} { yy_push_state(STRIFY); return VP_STRIFY; }
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<STRIFY><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated '\""); yyleng=0; yyterminate(); }
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<STRIFY>"`\\`\"" { return VP_BACKQUOTE; }
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<STRIFY>{quote} { yy_push_state(STRMODE); yymore(); }
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<STRIFY>{tickquote} { yy_pop_state(); return VP_STRIFY; }
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<STRIFY>{symbdef} { return VP_SYMBOL; }
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<STRIFY>{symbdef}`` { yyleng-=2; return VP_SYMBOL_JOIN; }
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<STRIFY>"`"{symbdef} { return VP_DEFREF; }
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<STRIFY>"`"{symbdef}`` { yyleng-=2; return VP_DEFREF_JOIN; }
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<STRIFY>`` { yyleng-=2; return VP_JOIN; }
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<STRIFY>{crnl} { linenoInc(); yytext = (char*)"\n"; yyleng = 1; return VP_WHITE; }
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<STRIFY>{wsn}+ { return VP_WHITE; }
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<STRIFY>{drop} { }
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<STRIFY>[\r] { }
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<STRIFY>. { return VP_TEXT; }
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/* Protected blocks */
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<INITIAL>"`protected" { yy_push_state(PRTMODE); yymore(); }
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<PRTMODE><<EOF>> { linenoInc(); yyerrorf("EOF in `protected"); yyleng=0; yyterminate(); }
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<PRTMODE>{crnl} { linenoInc(); return VP_TEXT; }
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<PRTMODE>. { yymore(); }
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/* Protected blocks */
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<INITIAL>"`protected" { yy_push_state(PRTMODE); yymore(); }
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<PRTMODE><<EOF>> { linenoInc(); yyerrorf("EOF in `protected"); yyleng = 0; yyterminate(); }
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<PRTMODE>{crnl} { linenoInc(); return VP_TEXT; }
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<PRTMODE>. { yymore(); }
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<PRTMODE>"`endprotected" { yy_pop_state(); return VP_TEXT; }
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/* Pass-through include <> filenames */
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<INCMODE><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated include filename"); yyleng=0; yyterminate(); }
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<INCMODE>{crnl} { linenoInc(); yyerrorf("Unterminated include filename"); BEGIN(INITIAL); }
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<INCMODE>[^\>\\] { yymore(); }
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<INCMODE>[\\]. { yymore(); }
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<INCMODE>[\>] { yy_pop_state(); return VP_STRING; }
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/* Pass-through include <> filenames */
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<INCMODE><<EOF>> { linenoInc(); yyerrorf("EOF in unterminated include filename"); yyleng = 0; yyterminate(); }
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<INCMODE>{crnl} { linenoInc(); yyerrorf("Unterminated include filename"); BEGIN(INITIAL); }
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<INCMODE>[^\>\\] { yymore(); }
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<INCMODE>[\\]. { yymore(); }
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<INCMODE>[\>] { yy_pop_state(); return VP_STRING; }
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/* Reading definition formal parenthesis (or not) to begin formal arguments */
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/* Note '(' must IMMEDIATELY follow definition name */
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<DEFFPAR>[(] { appendDefValue("(",1); LEXP->m_formalLevel=1; BEGIN(DEFFORM); }
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<DEFFPAR>{crnl} { yy_pop_state(); unput('\n'); yyleng=0; return VP_DEFFORM; } /* DEFVAL will later grab the return */
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<DEFFPAR><<EOF>> { yy_pop_state(); return VP_DEFFORM; } /* empty formals */
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<DEFFPAR>. { yy_pop_state(); unput(yytext[yyleng-1]); yyleng=0; return VP_DEFFORM; } /* empty formals */
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/* Reading definition formal parenthesis (or not) to begin formal arguments */
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/* Note '(' must IMMEDIATELY follow definition name */
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<DEFFPAR>[(] { appendDefValue("(", 1); LEXP->m_formalLevel=1; BEGIN(DEFFORM); }
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<DEFFPAR>{crnl} { yy_pop_state(); unput('\n'); yyleng=0; return VP_DEFFORM; } /* DEFVAL will later grab the return */
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<DEFFPAR><<EOF>> { yy_pop_state(); return VP_DEFFORM; } /* empty formals */
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<DEFFPAR>. { yy_pop_state(); unput(yytext[yyleng-1]); yyleng=0; return VP_DEFFORM; } /* empty formals */
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/* Reading definition formals (declaration of a define) */
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<DEFFORM>[(] { appendDefValue(yytext,yyleng); yyleng=0; ++LEXP->m_formalLevel; }
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<DEFFORM>[)] { appendDefValue(yytext,yyleng); yyleng=0;
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if ((--LEXP->m_formalLevel)==0) { yy_pop_state(); return VP_DEFFORM; } }
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<DEFFORM>"/*" { yy_push_state(CMTMODE); yymore(); }
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<DEFFORM>"//"[^\n\r]* { return (VP_COMMENT);}
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<DEFFORM>{drop} { }
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<DEFFORM><<EOF>> { linenoInc(); yy_pop_state(); yyerrorf("Unterminated ( in define formal arguments."); yyleng=0; return VP_DEFFORM; }
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<DEFFORM>{crnl} { linenoInc(); appendDefValue((char*)"\n",1); } /* Include return so can maintain output line count */
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/* Reading definition formals (declaration of a define) */
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<DEFFORM>[(] { appendDefValue(yytext, yyleng); yyleng=0; ++LEXP->m_formalLevel; }
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<DEFFORM>[)] { appendDefValue(yytext, yyleng); yyleng=0;
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if ((--LEXP->m_formalLevel)==0) { yy_pop_state(); return VP_DEFFORM; } }
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<DEFFORM>"/*" { yy_push_state(CMTMODE); yymore(); }
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<DEFFORM>"//"[^\n\r]* { return VP_COMMENT;}
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<DEFFORM>{drop} { }
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<DEFFORM><<EOF>> { linenoInc(); yy_pop_state(); yyerrorf("Unterminated ( in define formal arguments."); yyleng=0; return VP_DEFFORM; }
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<DEFFORM>{crnl} { linenoInc(); appendDefValue((char*)"\n", 1); } /* Include return so can maintain output line count */
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<DEFFORM>[\\]{wsn}+{crnl} { yyless(1); LEXP->curFilelinep()->v3warn(BSSPACE, "Backslash followed by whitespace, perhaps the whitespace is accidental?"); }
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<DEFFORM>[\\]{crnl} { linenoInc(); appendDefValue((char*)"\\\n",2); } /* Include return so can maintain output line count */
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<DEFFORM>{quote} { LEXP->m_defQuote=true; yy_push_state(STRMODE); yymore(); } /* Legal only in default values */
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<DEFFORM>"`\\`\"" { appendDefValue(yytext,yyleng); } /* Maybe illegal, otherwise in default value */
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<DEFFORM>{tickquote} { appendDefValue(yytext,yyleng); } /* Maybe illegal, otherwise in default value */
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<DEFFORM>[{\[] { LEXP->m_formalLevel++; appendDefValue(yytext,yyleng); }
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<DEFFORM>[}\]] { LEXP->m_formalLevel--; appendDefValue(yytext,yyleng); }
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<DEFFORM>[^\/\*\n\r\\(){}\[\]\"]+ |
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<DEFFORM>[\\][^\n\r] |
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<DEFFORM>. { appendDefValue(yytext,yyleng); }
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<DEFFORM>[\\]{crnl} { linenoInc(); appendDefValue((char*)"\\\n", 2); } /* Include return so can maintain output line count */
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<DEFFORM>{quote} { LEXP->m_defQuote=true; yy_push_state(STRMODE); yymore(); } /* Legal only in default values */
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<DEFFORM>"`\\`\"" { appendDefValue(yytext, yyleng); } /* Maybe illegal, otherwise in default value */
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<DEFFORM>{tickquote} { appendDefValue(yytext, yyleng); } /* Maybe illegal, otherwise in default value */
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<DEFFORM>[{\[] { LEXP->m_formalLevel++; appendDefValue(yytext, yyleng); }
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<DEFFORM>[}\]] { LEXP->m_formalLevel--; appendDefValue(yytext, yyleng); }
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<DEFFORM>[^\/\*\n\r\\(){}\[\]\"]+ |
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<DEFFORM>[\\][^\n\r] |
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<DEFFORM>. { appendDefValue(yytext, yyleng); }
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/* Reading definition value (declaration of a define's text) */
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<DEFVAL>"/*" { LEXP->m_defCmtSlash=false; yy_push_state(DEFCMT); yymore(); } /* Special comment parser */
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<DEFVAL>"//"[^\n\r]*[\\]{crnl} { linenoInc(); appendDefValue((char*)"\n",1); } /* Spec says // not part of define value */
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<DEFVAL>"//"[^\n\r]* { return (VP_COMMENT);}
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<DEFVAL>{drop} { }
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<DEFVAL><<EOF>> { linenoInc(); yy_pop_state(); yytext=(char*)"\n"; yyleng=1; return (VP_DEFVALUE); } /* Technically illegal, but people complained */
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<DEFVAL>{crnl} { linenoInc(); yy_pop_state(); yytext=(char*)"\n"; yyleng=1; return (VP_DEFVALUE); }
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/* Reading definition value (declaration of a define's text) */
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<DEFVAL>"/*" { LEXP->m_defCmtSlash=false; yy_push_state(DEFCMT); yymore(); } /* Special comment parser */
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<DEFVAL>"//"[^\n\r]*[\\]{crnl} { linenoInc(); appendDefValue((char*)"\n", 1); } /* Spec says // not part of define value */
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<DEFVAL>"//"[^\n\r]* { return VP_COMMENT;}
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<DEFVAL>{drop} { }
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<DEFVAL><<EOF>> { linenoInc(); yy_pop_state(); yytext=(char*)"\n"; yyleng=1; return VP_DEFVALUE; } /* Technically illegal, but people complained */
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<DEFVAL>{crnl} { linenoInc(); yy_pop_state(); yytext=(char*)"\n"; yyleng=1; return VP_DEFVALUE; }
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<DEFVAL>[\\]{wsn}+{crnl} { yyless(1); LEXP->curFilelinep()->v3warn(BSSPACE, "Backslash followed by whitespace, perhaps the whitespace is accidental?"); }
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<DEFVAL>[\\]{crnl} { linenoInc(); appendDefValue((char*)"\\\n",2); } /* Return, AND \ is part of define value */
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<DEFVAL>{quote} { LEXP->m_defQuote=true; yy_push_state(STRMODE); yymore(); }
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<DEFVAL>[^\/\*\n\r\\\"]+ |
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<DEFVAL>[\\][^\n\r] |
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<DEFVAL>. { appendDefValue(yytext,yyleng); }
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<DEFVAL>[\\]{crnl} { linenoInc(); appendDefValue((char*)"\\\n", 2); } /* Return, AND \ is part of define value */
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<DEFVAL>{quote} { LEXP->m_defQuote = true; yy_push_state(STRMODE); yymore(); }
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<DEFVAL>[^\/\*\n\r\\\"]+ |
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<DEFVAL>[\\][^\n\r] |
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<DEFVAL>. { appendDefValue(yytext, yyleng); }
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/* Comments inside define values - if embedded get added to define value per spec */
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/* - if no \{crnl} ending then the comment belongs to the next line, as a non-embedded comment */
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/* - if all but (say) 3rd line is missing \ then it's indeterminate */
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<DEFCMT>"*/" { yy_pop_state(); appendDefValue(yytext,yyleng); }
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/* Comments inside define values - if embedded get added to define value per spec */
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/* - if no \{crnl} ending then the comment belongs to the next line, as a non-embedded comment */
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/* - if all but (say) 3rd line is missing \ then it's indeterminate */
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<DEFCMT>"*/" { yy_pop_state(); appendDefValue(yytext, yyleng); }
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<DEFCMT>[\\]{wsn}+{crnl} { yyless(1); LEXP->curFilelinep()->v3warn(BSSPACE, "Backslash followed by whitespace, perhaps the whitespace is accidental?"); }
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<DEFCMT>[\\]{crnl} { linenoInc(); LEXP->m_defCmtSlash=true;
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appendDefValue(yytext,yyleng-2); appendDefValue((char*)"\n",1); } /* Return but not \ */
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<DEFCMT>{crnl} { linenoInc(); yymore(); if (LEXP->m_defCmtSlash) yyerrorf("One line of /* ... */ is missing \\ before newline");
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BEGIN(CMTMODE); }
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<DEFCMT>{word} { yymore(); }
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<DEFCMT>. { yymore(); }
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<DEFCMT><<EOF>> { yyerrorf("EOF in '/* ... */' block comment\n"); yyleng=0; yyterminate(); }
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<DEFCMT>[\\]{crnl} { linenoInc(); LEXP->m_defCmtSlash=true;
|
||||
appendDefValue(yytext, yyleng-2); appendDefValue((char*)"\n", 1); } /* Return but not \ */
|
||||
<DEFCMT>{crnl} { linenoInc(); yymore(); if (LEXP->m_defCmtSlash) yyerrorf("One line of /* ... */ is missing \\ before newline");
|
||||
BEGIN(CMTMODE); }
|
||||
<DEFCMT>{word} { yymore(); }
|
||||
<DEFCMT>. { yymore(); }
|
||||
<DEFCMT><<EOF>> { yyerrorf("EOF in '/* ... */' block comment\n"); yyleng=0; yyterminate(); }
|
||||
|
||||
/* Define arguments (use of a define) */
|
||||
<ARGMODE>"/*" { yy_push_state(CMTMODE); yymore(); }
|
||||
<ARGMODE>"//"[^\n\r]* { return (VP_COMMENT);}
|
||||
<ARGMODE>{drop} { }
|
||||
<ARGMODE><<EOF>> { yyerrorf("EOF in define argument list\n"); yyleng = 0; yyterminate(); }
|
||||
<ARGMODE>{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return(VP_WHITE); }
|
||||
<ARGMODE>{quote} { yy_push_state(STRMODE); yymore(); }
|
||||
<ARGMODE>"`\\`\"" { appendDefValue(yytext,yyleng); } /* Literal text */
|
||||
<ARGMODE>{tickquote} { yy_push_state(STRIFY); return(VP_STRIFY); }
|
||||
<ARGMODE>[{\[] { LEXP->m_parenLevel++; appendDefValue(yytext,yyleng); }
|
||||
<ARGMODE>[}\]] { LEXP->m_parenLevel--; appendDefValue(yytext,yyleng); }
|
||||
<ARGMODE>[(] { LEXP->m_parenLevel++;
|
||||
// Note paren level 0 means before "(" of starting args
|
||||
// Level 1 means "," between arguments
|
||||
// Level 2+ means one inside the () of an argument
|
||||
if (LEXP->m_parenLevel>1) {
|
||||
appendDefValue(yytext,yyleng);
|
||||
} else {
|
||||
return (VP_TEXT);
|
||||
}}
|
||||
<ARGMODE>[)] { LEXP->m_parenLevel--;
|
||||
if (LEXP->m_parenLevel>0) {
|
||||
appendDefValue(yytext,yyleng);
|
||||
} else {
|
||||
yy_pop_state(); return (VP_DEFARG);
|
||||
}}
|
||||
<ARGMODE>[,] { if (LEXP->m_parenLevel>1) {
|
||||
appendDefValue(yytext,yyleng);
|
||||
} else {
|
||||
yy_pop_state(); return (VP_DEFARG);
|
||||
}}
|
||||
<ARGMODE>"`"{symbdef} { appendDefValue(yytext,yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>"`"{symbdef}`` { appendDefValue(yytext,yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>`` { appendDefValue(yytext,yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>[^\/\*\n\r\\(,){}\[\]\"`]+ |
|
||||
<ARGMODE>. { appendDefValue(yytext,yyleng); }
|
||||
/* Define arguments (use of a define) */
|
||||
<ARGMODE>"/*" { yy_push_state(CMTMODE); yymore(); }
|
||||
<ARGMODE>"//"[^\n\r]* { return VP_COMMENT;}
|
||||
<ARGMODE>{drop} { }
|
||||
<ARGMODE><<EOF>> { yyerrorf("EOF in define argument list\n"); yyleng = 0; yyterminate(); }
|
||||
<ARGMODE>{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return VP_WHITE; }
|
||||
<ARGMODE>{quote} { yy_push_state(STRMODE); yymore(); }
|
||||
<ARGMODE>"`\\`\"" { appendDefValue(yytext, yyleng); } /* Literal text */
|
||||
<ARGMODE>{tickquote} { yy_push_state(STRIFY); return VP_STRIFY; }
|
||||
<ARGMODE>[{\[] { LEXP->m_parenLevel++; appendDefValue(yytext, yyleng); }
|
||||
<ARGMODE>[}\]] { LEXP->m_parenLevel--; appendDefValue(yytext, yyleng); }
|
||||
<ARGMODE>[(] { LEXP->m_parenLevel++;
|
||||
// Note paren level 0 means before "(" of starting args
|
||||
// Level 1 means "," between arguments
|
||||
// Level 2+ means one inside the () of an argument
|
||||
if (LEXP->m_parenLevel>1) {
|
||||
appendDefValue(yytext, yyleng);
|
||||
} else {
|
||||
return VP_TEXT;
|
||||
}}
|
||||
<ARGMODE>[)] { LEXP->m_parenLevel--;
|
||||
if (LEXP->m_parenLevel>0) {
|
||||
appendDefValue(yytext, yyleng);
|
||||
} else {
|
||||
yy_pop_state(); return VP_DEFARG;
|
||||
}}
|
||||
<ARGMODE>[,] { if (LEXP->m_parenLevel>1) {
|
||||
appendDefValue(yytext, yyleng);
|
||||
} else {
|
||||
yy_pop_state(); return VP_DEFARG;
|
||||
}}
|
||||
<ARGMODE>"`"{symbdef} { appendDefValue(yytext, yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>"`"{symbdef}`` { appendDefValue(yytext, yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>`` { appendDefValue(yytext, yyleng); } /* defref in defref - outer macro expands first */
|
||||
<ARGMODE>[^\/\*\n\r\\(,){}\[\]\"`]+ |
|
||||
<ARGMODE>. { appendDefValue(yytext, yyleng); }
|
||||
|
||||
/* One line comments. */
|
||||
<INITIAL>"//"{ws}*{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return (VP_WHITE); }
|
||||
<INITIAL>"//" { yy_push_state(CMTONEM); yymore(); }
|
||||
<CMTONEM>[^\n\r]* { yy_pop_state(); return (VP_COMMENT); }
|
||||
/* One line comments. */
|
||||
<INITIAL>"//"{ws}*{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return VP_WHITE; }
|
||||
<INITIAL>"//" { yy_push_state(CMTONEM); yymore(); }
|
||||
<CMTONEM>[^\n\r]* { yy_pop_state(); return VP_COMMENT; }
|
||||
|
||||
/* C-style comments. */
|
||||
/**** See also DEFCMT */
|
||||
/* We distinguish between the start of a comment, and later, to look for prefix comments (deprecated) */
|
||||
<INITIAL>"/*" { yy_push_state(CMTMODE); yymore(); }
|
||||
<CMTBEGM>{ws}+ { yymore(); }
|
||||
<CMTBEGM,CMTMODE>"*/" { yy_pop_state(); return(VP_COMMENT); }
|
||||
<CMTBEGM,CMTMODE>{crnl} { linenoInc(); yymore(); }
|
||||
<CMTBEGM,CMTMODE><<EOF>> { yyerrorf("EOF in '/* ... */' block comment\n"); yyleng=0; yyterminate(); }
|
||||
<CMTMODE>{word} { yymore(); }
|
||||
<CMTBEGM>. { BEGIN CMTMODE; yymore(); } /* beginning in comment */
|
||||
<CMTMODE>. { yymore(); }
|
||||
/* C-style comments. */
|
||||
/**** See also DEFCMT */
|
||||
/* We distinguish between the start of a comment, and later, to look for prefix comments (deprecated) */
|
||||
<INITIAL>"/*" { yy_push_state(CMTMODE); yymore(); }
|
||||
<CMTBEGM>{ws}+ { yymore(); }
|
||||
<CMTBEGM,CMTMODE>"*/" { yy_pop_state(); return VP_COMMENT; }
|
||||
<CMTBEGM,CMTMODE>{crnl} { linenoInc(); yymore(); }
|
||||
<CMTBEGM,CMTMODE><<EOF>> { yyerrorf("EOF in '/* ... */' block comment\n"); yyleng=0; yyterminate(); }
|
||||
<CMTMODE>{word} { yymore(); }
|
||||
<CMTBEGM>. { BEGIN CMTMODE; yymore(); } /* beginning in comment */
|
||||
<CMTMODE>. { yymore(); }
|
||||
|
||||
/* Define calls */
|
||||
/* symbdef prevents normal lex rules from making `\`"foo a symbol {`"foo} instead of a BACKQUOTE */
|
||||
<INITIAL>"`"{symbdef} { return (VP_DEFREF); }
|
||||
<INITIAL>"`"{symbdef}`` { yyleng-=2; return (VP_DEFREF_JOIN); }
|
||||
/* Define calls */
|
||||
/* symbdef prevents normal lex rules from making `\`"foo a symbol {`"foo} instead of a BACKQUOTE */
|
||||
<INITIAL>"`"{symbdef} { return VP_DEFREF; }
|
||||
<INITIAL>"`"{symbdef}`` { yyleng-=2; return VP_DEFREF_JOIN; }
|
||||
|
||||
/* Generics */
|
||||
<INITIAL>{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return(VP_WHITE); }
|
||||
<INITIAL><<EOF>> { yyterminate(); } /* A "normal" EOF */
|
||||
<INITIAL>{symb} { return (VP_SYMBOL); }
|
||||
<INITIAL>{symb}`` { yyleng-=2; return (VP_SYMBOL_JOIN); }
|
||||
<INITIAL>`` { yyleng-=2; return (VP_JOIN); }
|
||||
<INITIAL>{wsn}+ { return (VP_WHITE); }
|
||||
<INITIAL>{drop} { }
|
||||
<INITIAL>[\r] { }
|
||||
<INITIAL>. { return (VP_TEXT); }
|
||||
/* Generics */
|
||||
<INITIAL>{crnl} { linenoInc(); yytext=(char*)"\n"; yyleng=1; return VP_WHITE; }
|
||||
<INITIAL><<EOF>> { yyterminate(); } /* A "normal" EOF */
|
||||
<INITIAL>{symb} { return VP_SYMBOL; }
|
||||
<INITIAL>{symb}`` { yyleng-=2; return VP_SYMBOL_JOIN; }
|
||||
<INITIAL>`` { yyleng-=2; return VP_JOIN; }
|
||||
<INITIAL>{wsn}+ { return VP_WHITE; }
|
||||
<INITIAL>{drop} { }
|
||||
<INITIAL>[\r] { }
|
||||
<INITIAL>. { return VP_TEXT; }
|
||||
%%
|
||||
|
||||
void V3PreLex::pushStateDefArg(int level) {
|
||||
@ -303,7 +303,7 @@ void V3PreLex::pushStateIncFilename() {
|
||||
yymore();
|
||||
}
|
||||
|
||||
void V3PreLex::debug(int level) { yy_flex_debug=level; }
|
||||
void V3PreLex::debug(int level) { yy_flex_debug = level; }
|
||||
int V3PreLex::debug() { return yy_flex_debug; }
|
||||
|
||||
int V3PreLex::lex() {
|
||||
@ -320,43 +320,46 @@ size_t V3PreLex::inputToLex(char* buf, size_t max_size) {
|
||||
// become a stale invalid pointer.
|
||||
//
|
||||
VPreStream* streamp = curStreamp();
|
||||
if (debug()>=10) { cout<<"- pp:inputToLex ITL s="<<max_size<<" bs="<<streamp->m_buffers.size()<<endl; dumpStack(); }
|
||||
if (debug()>=10) {
|
||||
cout<<"- pp:inputToLex ITL s="<<max_size<<" bs="<<streamp->m_buffers.size()<<endl;
|
||||
dumpStack();
|
||||
}
|
||||
// For testing, use really small chunks
|
||||
//if (max_size > 13) max_size=13;
|
||||
again:
|
||||
size_t got = 0;
|
||||
// Get from this stream
|
||||
while (got < max_size // Haven't got enough
|
||||
&& !streamp->m_buffers.empty()) { // And something buffered
|
||||
string front = curStreamp()->m_buffers.front(); streamp->m_buffers.pop_front();
|
||||
size_t len = front.length();
|
||||
if (len > (max_size-got)) { // Front string too big
|
||||
len = (max_size-got);
|
||||
string remainder = front.substr(len);
|
||||
front = front.substr(0, len);
|
||||
streamp->m_buffers.push_front(remainder); // Put back remainder for next time
|
||||
}
|
||||
strncpy(buf+got, front.c_str(), len);
|
||||
got += len;
|
||||
while (got < max_size // Haven't got enough
|
||||
&& !streamp->m_buffers.empty()) { // And something buffered
|
||||
string front = curStreamp()->m_buffers.front(); streamp->m_buffers.pop_front();
|
||||
size_t len = front.length();
|
||||
if (len > (max_size-got)) { // Front string too big
|
||||
len = (max_size-got);
|
||||
string remainder = front.substr(len);
|
||||
front = front.substr(0, len);
|
||||
streamp->m_buffers.push_front(remainder); // Put back remainder for next time
|
||||
}
|
||||
strncpy(buf+got, front.c_str(), len);
|
||||
got += len;
|
||||
}
|
||||
if (!got) { // end of stream; try "above" file
|
||||
bool again=false;
|
||||
string forceOut = endOfStream(again/*ref*/);
|
||||
streamp = curStreamp(); // May have been updated
|
||||
if (forceOut != "") {
|
||||
if (forceOut.length() > max_size) {
|
||||
yyerrorf("Output buffer too small for a `line");
|
||||
} else {
|
||||
got = forceOut.length();
|
||||
strncpy(buf, forceOut.c_str(), got);
|
||||
}
|
||||
} else {
|
||||
if (streamp->m_eof) {
|
||||
if (yy_flex_debug) cout<<"- EOF\n";
|
||||
}
|
||||
got = 0; // 0=EOF/EOS - although got was already 0.
|
||||
if (again) goto again;
|
||||
}
|
||||
if (!got) { // end of stream; try "above" file
|
||||
bool again = false;
|
||||
string forceOut = endOfStream(again/*ref*/);
|
||||
streamp = curStreamp(); // May have been updated
|
||||
if (forceOut != "") {
|
||||
if (forceOut.length() > max_size) {
|
||||
yyerrorf("Output buffer too small for a `line");
|
||||
} else {
|
||||
got = forceOut.length();
|
||||
strncpy(buf, forceOut.c_str(), got);
|
||||
}
|
||||
} else {
|
||||
if (streamp->m_eof) {
|
||||
if (yy_flex_debug) cout<<"- EOF\n";
|
||||
}
|
||||
got = 0; // 0=EOF/EOS - although got was already 0.
|
||||
if (again) goto again;
|
||||
}
|
||||
}
|
||||
if (debug()>=10) { cout<<"- pp::inputToLex got="<<got<<" '"<<string(buf, got)<<"'"<<endl; }
|
||||
return got;
|
||||
@ -365,59 +368,61 @@ size_t V3PreLex::inputToLex(char* buf, size_t max_size) {
|
||||
string V3PreLex::endOfStream(bool& againr) {
|
||||
// Switch to file or next unputString
|
||||
againr = false;
|
||||
if (yy_flex_debug) cout<<"-EOS state="<<curStreamp()->m_termState<<" at "<<curFilelinep()<<endl;
|
||||
if (curStreamp()->m_eof) return ""; // Don't delete the final "EOF" stream
|
||||
if (yy_flex_debug) {
|
||||
cout<<"-EOS state="<<curStreamp()->m_termState<<" at "<<curFilelinep()<<endl;
|
||||
}
|
||||
if (curStreamp()->m_eof) return ""; // Don't delete the final "EOF" stream
|
||||
bool exited_file = curStreamp()->m_file;
|
||||
if (!exited_file) {
|
||||
// Midpoint of stream, just change buffers
|
||||
delete curStreamp();
|
||||
m_streampStack.pop(); // Must work as size>1; EOF is entry 0
|
||||
againr = true;
|
||||
return "";
|
||||
// Midpoint of stream, just change buffers
|
||||
delete curStreamp();
|
||||
m_streampStack.pop(); // Must work as size>1; EOF is entry 0
|
||||
againr = true;
|
||||
return "";
|
||||
}
|
||||
// Multiple steps because we need FLEX to see ending \n and EOS to end
|
||||
// any illegal states, like an unterminated `protected region
|
||||
else if (!curStreamp()->m_termState) {
|
||||
// First shutdown phase for a file
|
||||
// Terminate all files with a newline. This prevents problems if
|
||||
// the user had a define without a terminating newline,
|
||||
// otherwise the resumed file's next line would get tacked on.
|
||||
// Also makes it likely the `line that changes files comes out
|
||||
// immediately.
|
||||
curStreamp()->m_termState = 1;
|
||||
return "\n"; // Exit old file
|
||||
// First shutdown phase for a file
|
||||
// Terminate all files with a newline. This prevents problems if
|
||||
// the user had a define without a terminating newline,
|
||||
// otherwise the resumed file's next line would get tacked on.
|
||||
// Also makes it likely the `line that changes files comes out
|
||||
// immediately.
|
||||
curStreamp()->m_termState = 1;
|
||||
return "\n"; // Exit old file
|
||||
}
|
||||
else if (curStreamp()->m_termState == 1) {
|
||||
// Now the EOF - can't be sent with other characters
|
||||
curStreamp()->m_termState = 2;
|
||||
return ""; // End of file
|
||||
// Now the EOF - can't be sent with other characters
|
||||
curStreamp()->m_termState = 2;
|
||||
return ""; // End of file
|
||||
}
|
||||
else if (curStreamp()->m_termState == 2) {
|
||||
// Now ending `line
|
||||
curStreamp()->m_termState = 3;
|
||||
return curFilelinep()->lineDirectiveStrg(2); // Exit old file
|
||||
// Now ending `line
|
||||
curStreamp()->m_termState = 3;
|
||||
return curFilelinep()->lineDirectiveStrg(2); // Exit old file
|
||||
}
|
||||
else {
|
||||
// Final shutdown phase for a stream, we can finally change the
|
||||
// current fileline to the new stream
|
||||
curStreamp()->m_termState = 0;
|
||||
FileLine* filelinep = curFilelinep();
|
||||
delete curStreamp();
|
||||
m_streampStack.pop(); // Must work as size>1; EOF is entry 0
|
||||
if (curStreamp()->m_eof) {
|
||||
// EOF doesn't have a "real" fileline, but a linenumber of 0 from init time
|
||||
// Inherit whatever we last parsed so it's more obvious.
|
||||
curFilelinep(filelinep);
|
||||
}
|
||||
// The caller parser remembered the start location for the text we are parsing,
|
||||
// but we've discovered there was a file switch along the way, so update it.
|
||||
m_tokFilelinep = curFilelinep();
|
||||
//
|
||||
if (curStreamp()->m_eof) {
|
||||
return "";
|
||||
} else {
|
||||
return curFilelinep()->lineDirectiveStrg(0); // Reenter resumed file
|
||||
}
|
||||
// Final shutdown phase for a stream, we can finally change the
|
||||
// current fileline to the new stream
|
||||
curStreamp()->m_termState = 0;
|
||||
FileLine* filelinep = curFilelinep();
|
||||
delete curStreamp();
|
||||
m_streampStack.pop(); // Must work as size>1; EOF is entry 0
|
||||
if (curStreamp()->m_eof) {
|
||||
// EOF doesn't have a "real" fileline, but a linenumber of 0 from init time
|
||||
// Inherit whatever we last parsed so it's more obvious.
|
||||
curFilelinep(filelinep);
|
||||
}
|
||||
// The caller parser remembered the start location for the text we are parsing,
|
||||
// but we've discovered there was a file switch along the way, so update it.
|
||||
m_tokFilelinep = curFilelinep();
|
||||
//
|
||||
if (curStreamp()->m_eof) {
|
||||
return "";
|
||||
} else {
|
||||
return curFilelinep()->lineDirectiveStrg(0); // Reenter resumed file
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
@ -436,14 +441,14 @@ void V3PreLex::initFirstBuffer(FileLine* filelinep) {
|
||||
void V3PreLex::scanNewFile(FileLine* filelinep) {
|
||||
// Called on new open file. scanBytesBack will be called next.
|
||||
if (streamDepth() > V3PreProc::DEFINE_RECURSION_LEVEL_MAX) {
|
||||
// The recursive `include in VPreProcImp should trigger first
|
||||
yyerrorf("Recursive `define or other nested inclusion");
|
||||
curStreamp()->m_eof = true; // Fake it to stop recursion
|
||||
// The recursive `include in VPreProcImp should trigger first
|
||||
yyerrorf("Recursive `define or other nested inclusion");
|
||||
curStreamp()->m_eof = true; // Fake it to stop recursion
|
||||
} else {
|
||||
VPreStream* streamp = new VPreStream(filelinep, this);
|
||||
m_tokFilelinep = curFilelinep();
|
||||
streamp->m_file = true;
|
||||
scanSwitchStream(streamp);
|
||||
VPreStream* streamp = new VPreStream(filelinep, this);
|
||||
m_tokFilelinep = curFilelinep();
|
||||
streamp->m_file = true;
|
||||
scanSwitchStream(streamp);
|
||||
}
|
||||
}
|
||||
|
||||
@ -454,14 +459,14 @@ void V3PreLex::scanBytes(const string& str) {
|
||||
// Also we don't use scan_bytes that would set yy_fill_buffer
|
||||
// which would force Flex to bypass our YY_INPUT routine.
|
||||
if (streamDepth() > V3PreProc::DEFINE_RECURSION_LEVEL_MAX) {
|
||||
// More streams if recursive `define with complex insertion
|
||||
// More buffers mostly if something internal goes funky
|
||||
yyerrorf("Recursive `define or other nested inclusion");
|
||||
curStreamp()->m_eof = true; // Fake it to stop recursion
|
||||
// More streams if recursive `define with complex insertion
|
||||
// More buffers mostly if something internal goes funky
|
||||
yyerrorf("Recursive `define or other nested inclusion");
|
||||
curStreamp()->m_eof = true; // Fake it to stop recursion
|
||||
} else {
|
||||
VPreStream* streamp = new VPreStream(curFilelinep(), this);
|
||||
streamp->m_buffers.push_front(str);
|
||||
scanSwitchStream(streamp);
|
||||
VPreStream* streamp = new VPreStream(curFilelinep(), this);
|
||||
streamp->m_buffers.push_front(str);
|
||||
scanSwitchStream(streamp);
|
||||
}
|
||||
}
|
||||
|
||||
@ -482,10 +487,10 @@ string V3PreLex::currentUnreadChars() {
|
||||
// WARNING - Peeking at internals
|
||||
ssize_t left = (yy_n_chars - (yy_c_buf_p -currentBuffer()->yy_ch_buf));
|
||||
if (left > 0) { // left may be -1 at EOS
|
||||
*(yy_c_buf_p) = (yy_hold_char);
|
||||
return string(yy_c_buf_p, left);
|
||||
*(yy_c_buf_p) = (yy_hold_char);
|
||||
return string(yy_c_buf_p, left);
|
||||
} else {
|
||||
return "";
|
||||
return "";
|
||||
}
|
||||
}
|
||||
|
||||
@ -507,8 +512,8 @@ void V3PreLex::dumpSummary() {
|
||||
cout<<"- pp::dumpSummary curBuf="<<cvtToHex(currentBuffer());
|
||||
#ifdef FLEX_DEBUG // Else peeking at internals may cause portability issues
|
||||
ssize_t left = (yy_n_chars
|
||||
- (yy_c_buf_p
|
||||
-currentBuffer()->yy_ch_buf));
|
||||
- (yy_c_buf_p
|
||||
-currentBuffer()->yy_ch_buf));
|
||||
cout<<" left="<<std::dec<<left;
|
||||
#endif
|
||||
cout<<endl;
|
||||
@ -519,15 +524,15 @@ void V3PreLex::dumpStack() {
|
||||
dumpSummary();
|
||||
std::stack<VPreStream*> tmpstack = LEXP->m_streampStack;
|
||||
while (!tmpstack.empty()) {
|
||||
VPreStream* streamp = tmpstack.top();
|
||||
cout<<"- bufferStack["<<cvtToHex(streamp)<<"]: "
|
||||
<<" at="<<streamp->m_curFilelinep
|
||||
<<" nBuf="<<streamp->m_buffers.size()
|
||||
<<" size0="<<(streamp->m_buffers.empty() ? 0 : streamp->m_buffers.front().length())
|
||||
<<(streamp->m_eof?" [EOF]":"")
|
||||
<<(streamp->m_file?" [FILE]":"");
|
||||
cout<<endl;
|
||||
tmpstack.pop();
|
||||
VPreStream* streamp = tmpstack.top();
|
||||
cout<<"- bufferStack["<<cvtToHex(streamp)<<"]: "
|
||||
<<" at="<<streamp->m_curFilelinep
|
||||
<<" nBuf="<<streamp->m_buffers.size()
|
||||
<<" size0="<<(streamp->m_buffers.empty() ? 0 : streamp->m_buffers.front().length())
|
||||
<<(streamp->m_eof?" [EOF]":"")
|
||||
<<(streamp->m_file?" [FILE]":"");
|
||||
cout<<endl;
|
||||
tmpstack.pop();
|
||||
}
|
||||
}
|
||||
|
||||
@ -541,9 +546,9 @@ string V3PreLex::cleanDbgStrg(const string& in) {
|
||||
|
||||
void V3PreLex::unused() {
|
||||
if (0) {
|
||||
// Prevent unused warnings
|
||||
yy_top_state();
|
||||
yyerror((char*)"");
|
||||
// Prevent unused warnings
|
||||
yy_top_state();
|
||||
yyerror((char*)"");
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
1565
src/verilog.l
1565
src/verilog.l
File diff suppressed because it is too large
Load Diff
Loading…
Reference in New Issue
Block a user