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/* $Id: F90sym.lex,v 1.1 1997/03/23 05:52:43 cnh Exp cnh $ */ |
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/* Lex analyser to produce a list of names */ |
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/* from a fixed form Fortran 90 program. */ |
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/* Rules assume that *NO* Fortran 90 */ |
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/* keywords that the rules identify are */ |
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/* used as variable names. */ |
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%p 100000 |
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%a 100000 |
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%o 100000 |
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%n 100000 |
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%k 100000 |
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%e 100000 |
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%s LOADLINE |
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%option noyywrap |
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|
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/* Line and character no. counter */ |
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int Lno=1;int Cno=1; |
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NAME [_a-zA-Z]+[_a-zA-Z0-9]* |
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INT [0-9]* |
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EXPO ([EeDd][+-]?{INT}) |
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FLOAT ([0-9]+\.|\.[0-9]+|[0-9]+\.[0-9]+){EXPO}? |
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CONT ^[ ][ ][ ][ ][ ][^ \n].* |
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LAB ^[1-9]....* |
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/* Those wretched case insensitive keywords */ |
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A [aA] |
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B [bB] |
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C [cC] |
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D [dD] |
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E [eE] |
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F [fF] |
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G [gG] |
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H [hH] |
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I [iI] |
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J [jJ] |
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K [kK] |
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L [lL] |
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M [mM] |
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N [nN] |
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O [oO] |
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P [pP] |
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Q [qQ] |
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R [rR] |
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S [sS] |
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T [tT] |
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U [uU] |
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V [vV] |
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W [wW] |
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X [xX] |
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Y [yY] |
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Z [zZ] |
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|
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%{ |
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#include "string.h" |
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#include "stdio.h" |
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#include "F90sym.tab.h" /* Tokens for yacc return values */ |
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#include "GLOBALS.h" |
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int call1yylex = 0; |
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%} |
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|
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%% |
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if ( call1yylex == 0 ) { |
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BEGIN(LOADLINE); |
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call1yylex = 1; |
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} |
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|
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^[CcDd].* {Cno=Cno+F90symleng; /* 'C' or 'D' in column 1 F77 style comment */ |
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strcat(currentLineHtml,"<I>"); /* echo italicised to HTML buffer */ |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</I>"); |
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return(OTHER);} |
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|
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^[\*].* {Cno=Cno+F90symleng; /* '*' in column 1 */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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'[^']*' {Cno=Cno+F90symleng; /* String in ' quotes */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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\"[^\"]*\" {Cno=Cno+F90symleng; /* String in " quotes */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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!.* {Cno=Cno+F90symleng; /* Inline quote */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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\/\*.* {Cno=Cno+F90symleng; /* Inline quote ( C-style ) */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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^[ \t]* {Cno=Cno+F90symleng; /* Blank line */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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{LAB} {Cno=Cno+F90symleng; /* Col 1-5 label */ |
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currentLineText[0]=(char)NULL; /* Note the trick here: */ |
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sprintf(currentLineHtml,"<A NAME=%d_L></A>",Lno); |
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strncat(currentLineHtml,F90symtext,5); /* We have to match a whole line because otherwise */ |
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strncat(currentLineText,F90symtext,5); /* we loose our left context ^ to LOADLINE. We then */ |
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yyless(5);return(OTHER);} /* put back all but the first n chars after setting */ |
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/* currentLineText. */ |
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/* I think the proper way to do this is via */ |
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/* a left context of <INITIAL>. This is working for */ |
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/* #ifdef. Haven't tried it for LAB and CONT yet. */ |
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|
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{CONT} {Cno=Cno+F90symleng; /* Col 6 non-blank continuation */ |
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currentLineText[0]=(char)NULL; /* Need to use same trick as col 1-5 label */ |
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sprintf(currentLineHtml,"<A NAME=%d_L></A>",Lno); |
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strncat(currentLineText,F90symtext,6); |
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strncat(currentLineHtml,F90symtext,6); |
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yyless(6);} |
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|
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<INITIAL>#ifdef | /* ifdef CPP statement */ |
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<INITIAL>#[ ]*ifdef {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_IFDEF);} |
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<INITIAL>#undef | /* undef CPP statement */ |
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<INITIAL>#[ ]*undef {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_UNDEF);} |
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<INITIAL>#define | /* define CPP statement */ |
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<INITIAL>#[ ]*define {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_DEFINE);} |
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<INITIAL>#elif | /* elif CPP statement */ |
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<INITIAL>#[ ]*elif {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_ELIF);} |
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<INITIAL>#if | /* if CPP statement */ |
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<INITIAL>#[ ]*if {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_IF );} |
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<INITIAL>#ifndef | /* ifndef CPP statement */ |
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<INITIAL>#[ ]*ifndef {Cno=Cno+F90symleng; |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,F90symtext); |
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return(CPP_IFNDEF);} |
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|
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{INT} {Cno=Cno+F90symleng; /* Integer */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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{FLOAT} {Cno=Cno+F90symleng; /* Floating point number */ |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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^#ifndef.* | /* C preprocessor controls */ |
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^#[ ]*endif.* | |
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^#undef.* | |
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^#define.* | |
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^#elif | |
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^#if | |
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^#[ ]*include.* | |
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^#else.* {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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[ \t\r] {Cno=Cno+F90symleng; /* Blank space */ |
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strcat(currentLineHtml,F90symtext);} |
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|
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\( {Cno=Cno+F90symleng; /* ( bracket */ |
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strcat(currentLineHtml,"<FONT SIZE=5><B>"); /* echo bold to HTML buffer */ |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</FONT></B>"); |
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return(OTHER);} |
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|
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\) {Cno=Cno+F90symleng; /* ) bracket */ |
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strcat(currentLineHtml,"<FONT SIZE=5><B>"); /* echo bold to HTML buffer */ |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</FONT></B>"); |
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return(OTHER);} |
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|
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\, | /* Various punctutation symbols or operators */ |
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\. | /* which are just echoed to the HTML buffer. */ |
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\: | |
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\= | |
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\+ | |
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\- | |
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\* {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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\/ {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,F90symtext); |
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return(FSLASH);} |
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|
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{A}{B}{S} | /* Language keywords which are just echoed to */ |
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{A}{L}{L} | /* HTML buffer. ( Alphabetical order ) */ |
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{A}{N}{D} | |
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{A}{N}{Y} | |
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{C}{H}{A}{R}{A}{C}{T}{E}{R} | |
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{C}{L}{O}{S}{E} | |
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{C}{O}{N}{T}{I}{N}{U}{E} | |
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{C}{O}{S} | |
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{C}{O}{U}{N}{T} | |
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{C}{S}{H}{I}{F}{T} | |
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{D}{A}{T}{A} | |
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{D}{I}{M} | |
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{E}{N}{D}{W}{H}{E}{R}{E} | |
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{E}{Q} | |
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{F}{A}{L}{S}{E} | |
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{F}{I}{L}{E} | |
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{F}{L}{O}{A}{T} | |
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{F}{M}{T} | |
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{F}{O}{R}{A}{L}{L} | |
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{F}{O}{R}{M}{A}{T}.* | |
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{F}{U}{N}{C}{T}{I}{O}{N} | |
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{G}{E} | |
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{G}{O}{T}{O} | |
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[ ]*\.{G}{T}[ ]*\. | /* Unfortunately we chose to call a variable gT! */ |
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{I}{M}{P}{L}{I}{C}{I}{T} | |
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{I}{N}{C}{L}{U}{D}{E} | |
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{I}{N}{D}{E}{X} | |
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{I}{N}{T} | |
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{I}{N}{T}{E}{G}{E}{R} | |
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{I}{O}{S}{T}{A}{T} | |
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{L}{E} | |
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{L}{E}{N} | |
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{L}{O}{G}{I}{C}{A}{L} | |
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{L}{T} | |
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{M}{A}{S}{K} | |
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{M}{A}{X} | |
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{M}{A}{X}{V}{A}{L} | |
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{M}{I}{N} | |
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{M}{I}{N}{V}{A}{L} | |
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{M}{O}{D} | |
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{N}{E} | |
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{N}{I}{N}{T} | |
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{N}{O}{N}{E} | |
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{N}{O}{T} | |
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{O}{P}{E}{N} | |
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{O}{R} | |
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{P}{A}{R}{A}{M}{E}{T}{E}{R} | |
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{P}{R}{I}{N}{T} | |
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{P}{R}{O}{G}{R}{A}{M} | |
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{R}{E}{A}{D} | |
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{R}{E}{A}{L} | |
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{R}{E}{T}{U}{R}{N} | |
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{R}{E}{W}{I}{N}{D} | |
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{S}{A}{V}{E} | |
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{S}{H}{I}{F}{T} | |
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{S}{I}{N} | |
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{S}{Q}{R}{T} | |
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{S}{T}{A}{T}{U}{S} | |
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{S}{T}{O}{P} | |
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{S}{U}{M} | |
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{T}{A}{N} | |
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{T}{H}{E}{N} | |
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{T}{R}{U}{E} | |
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{U}{N}{I}{T} | |
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{W}{R}{I}{T}{E} {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,F90symtext); |
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return(OTHER);} |
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|
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{D}{O} | /* Language keywords which are just echoed BOLD */ |
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{E}{L}{S}{E} | /* to HTML buffer. ( Alphabetical order ) */ |
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{E}{L}{S}{E}{I}{F} | |
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{E}{L}{S}{E}{W}{H}{E}{R}{E} | |
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{E}{N}{D}{D}{O} | |
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{E}{N}{D}{I}{F} | |
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{I}{F} | |
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{W}{H}{E}{R}{E} {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,"<B>"); |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</B>"); |
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return(OTHER);} |
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|
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{E}{N}{D}= {Cno=Cno+F90symleng; /* END= in I/O statement */ |
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strcat(currentLineHtml,"<B>"); |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</B>"); |
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return(OTHER);} |
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{C}{A}{L}{L} {Cno=Cno+F90symleng; /* CALL returns "CALL" token to parser */ |
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F90symlval.LineNo=Lno; |
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strcat(currentLineHtml,"<U><B>"); |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</B></U>"); |
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return(CALL);} |
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{E}{N}{D} {Cno=Cno+F90symleng; /* END causes horizontal line to be */ |
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strcat(currentLineHtml,F90symtext); /* to HTML buffer. */ |
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strcat(currentLineHtml,"<HR>"); /* Exclude END= because we don't want */ |
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strcat(currentLineHtml,"<HR>"); /* to match END= clauses in I/O statements */ |
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strcat(currentLineHtml,"<HR>"); |
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return(OTHER);} |
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{E}{X}{T}{E}{R}{N}{A}{L} {Cno=Cno+F90symleng; /* EXTERNAL returns "EXTERNAL" token to*/ |
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F90symlval.LineNo=Lno; /* parser. */ |
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strcat(currentLineHtml,F90symtext); |
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return(EXTERNAL);} |
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{S}{U}{B}{R}{O}{U}{T}{I}{N}{E} {Cno=Cno+F90symleng; /* Write SUBROUTINE to HTML buffer bold*/ |
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F90symlval.LineNo=Lno; /* and with large font */ |
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strcat(currentLineHtml,"<FONT SIZE=8><B>"); |
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strcat(currentLineHtml,F90symtext); |
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strcat(currentLineHtml,"</FONT></B>"); |
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return(SUBROUTINE);} /* Return "SUBROUTINE" token to parser */ |
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{N}{A}{M}{E}{L}{I}{S}{T} {Cno=Cno+F90symleng; |
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strcat(currentLineHtml,F90symtext); |
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return(NAMELIST);} |
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|
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{NAME} {Cno=Cno+F90symleng; /* At last! A variable name. This is */ |
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F90symlval.symbolName=strdup(F90symtext); /* written to HTML buffer by the parser */ |
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return(NAME);} /* code cos we need to know the HREF */ |
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|
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<LOADLINE>.* { if ( currentLineText[0] == (char)NULL || |
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currentLineText[0] == '#' ) /* Special trick to create a */ |
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{ /* Not a continuation or label */ /* string containing the current */ |
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strncpy(currentLineText,F90symtext,currentLineBufSize-1); /* line. */ |
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sprintf(currentLineHtml,"<A NAME=%d_L></A>",Lno); |
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newLineNotify(); |
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newStatementNotify(); /* Call function to clear context */ |
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} /* related to previous statement */ |
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else |
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{ /* Continuation or label */ |
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newLineNotify(); |
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strncat(currentLineText,F90symtext,currentLineBufSize-7); |
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} |
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yyless(0); |
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BEGIN(INITIAL); |
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} |
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|
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\n\r | |
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\n { /* Newline */ |
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F90db_Newline(); /* Write out HTML buffer */ |
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BEGIN(LOADLINE); |
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++Lno;Cno=0; |
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currentLineText[0]=(char)NULL; /* Clear current line buffer */ |
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currentLineHtml[0]=(char)NULL;} /* Clear HTML buffer */ |
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|
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. {printf(" Unclassified symbol \"%s\" @ line %d\n",F90symtext,Lno); /* Something unrecognised */ |
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Cno=Cno+F90symleng;} /* This should not happen for */ |
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/* legitimate programs. */ |
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