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locks; strict; comment @# @; 1.1 date 2009.10.26.00.28.33; author christos; state Exp; branches 1.1.1.1; next ; 1.1.1.1 date 2009.10.26.00.28.33; author christos; state Exp; branches; next ; desc @@ 1.1 log @Initial revision @ text @/* * j2t.lex : An example of the use (possibly abuse!) * of start states. */ %{ #define MAX_STATES 1024 #define TRUE 1 #define FALSE 0 #define CHAPTER "@@chapter" #define SECTION "@@section" #define SSECTION "@@subsection" #define SSSECTION "@@subsubsection" int states[MAX_STATES]; int statep = 0; int need_closing = FALSE; char buffer[YY_BUF_SIZE]; extern char *yytext; /* * set up the head of the *.texinfo file the program * will produce. This is a standard texinfo header. */ void print_header(void) { printf("\\input texinfo @@c -*-texinfo-*-\n"); printf("@@c %c**start of header\n",'%'); printf("@@setfilename jargon.info\n"); printf("@@settitle The New Hackers Dictionary\n"); printf("@@synindex fn cp\n"); printf("@@synindex vr cp\n"); printf("@@c %c**end of header\n",'%'); printf("@@setchapternewpage odd\n"); printf("@@finalout\n"); printf("@@c @@smallbook\n"); printf("\n"); printf("@@c ==========================================================\n\n"); printf("@@c This file was produced by j2t. Any mistakes are *not* the\n"); printf("@@c fault of the jargon file editors. \n"); printf("@@c ==========================================================\n\n"); printf("@@titlepage\n"); printf("@@title The New Hackers Dictionary\n"); printf("@@subtitle Version 2.9.10\n"); printf("@@subtitle Generated by j2t\n"); printf("@@author Eric S. Raymond, Guy L. Steel, Mark Crispin et al.\n"); printf("@@end titlepage\n"); printf("@@page\n"); printf("\n@@c ==========================================================\n"); printf("\n\n"); printf("@@unnumbered Preface\n"); printf("@@c *******\n"); } /* * create the tail of the texinfo file produced. */ void print_trailer(void) { printf("\n@@c ==========================================================\n"); printf("@@contents\n"); /* print the table of contents */ printf("@@bye\n\n"); } /* * write an underline under a section * or chapter so we can find it later. */ void write_underline(int len, int space, char ch) { int loop; printf("@@c "); for(loop=3; loop"@@" printf("@@@@"); "{" printf("@@{"); "}" printf("@@}"); /* * reproduce @@example code */ ":"\n+[^\n0-9*]+\n" "[^ ] { int loop; int len; int cnt; printf(":\n\n@@example \n"); strcpy(buffer,yytext); len = strlen(buffer); cnt = 0; for(loop=len; loop > 0;loop--){ if(buffer[loop] == '\n') cnt++; if(cnt == 2) break; } yyless(loop+1); statep++; states[statep] = EXAMPLE2; BEGIN(EXAMPLE2); } ^\n { printf("@@end example\n\n"); statep--; BEGIN(states[statep]); } /* * repoduce @@enumerate lists */ ":"\n+[ \t]*[0-9]+"." { int loop; int len; printf(":\n\n@@enumerate \n"); strcpy(buffer,yytext); len = strlen(buffer); for(loop=len; loop > 0;loop--){ if(buffer[loop] == '\n') break; } yyless(loop); statep++; states[statep] = ENUM; BEGIN(ENUM); } "@@" printf("@@@@"); ":"\n+" "[^0-9] { printf(":\n\n@@example\n"); statep++; states[statep] = EXAMPLE; BEGIN(EXAMPLE); } \n[ \t]+[0-9]+"." { printf("\n\n@@item "); } ^[^ ] | \n\n\n[ \t]+[^0-9] { printf("\n\n@@end enumerate\n\n"); statep--; BEGIN(states[statep]); } /* * reproduce one kind of @@itemize list */ ":"\n+":" { int loop; int len; printf(":\n\n@@itemize @@bullet \n"); yyless(2); statep++; states[statep] = LITEM2; BEGIN(LITEM2); } ^":".+":" { (void)check_and_convert(&yytext[1]); buffer[strlen(buffer)-1]='\0'; printf("@@item @@b{%s:}\n",buffer); } \n\n\n+[^:\n] { printf("\n\n@@end itemize\n\n"); ECHO; statep--; BEGIN(states[statep]); } /* * create a list out of the revision history part. * We need the "Version" for this because it * clashes with other rules otherwise. */ :[\n]+"Version"[^:\n*]+":" { int loop; int len; printf(":\n\n@@itemize @@bullet \n"); strcpy(buffer,yytext); len = strlen(buffer); for(loop=len; loop > 0;loop--){ if(buffer[loop] == '\n') break; } yyless(loop); statep++; states[statep] = LITEM; BEGIN(LITEM); } ^.+":" { (void)check_and_convert(yytext); buffer[strlen(buffer)-1]='\0'; printf("@@item @@b{%s}\n\n",buffer); } ^[^:\n]+\n\n[^:\n]+\n { int loop; strcpy(buffer,yytext); for(loop=0; buffer[loop] != '\n'; loop++); buffer[loop] = '\0'; printf("%s\n",buffer); printf("@@end itemize\n\n"); printf("%s",&buffer[loop+1]); statep--; BEGIN(states[statep]); } /* * reproduce @@itemize @@bullet lists */ ":"\n[ ]*"*" { int loop; int len; printf(":\n\n@@itemize @@bullet \n"); len = strlen(buffer); for(loop=0; loop < len;loop++){ if(buffer[loop] == '\n') break; } yyless((len-loop)+2); statep++; states[statep] = BITEM; BEGIN(BITEM); } ^" "*"*" { printf("@@item"); statep++; states[statep] = BITEM_ITEM; BEGIN(BITEM_ITEM); } "@@" printf("@@@@"); ^\n { printf("@@end itemize\n\n"); statep--; BEGIN(states[statep]); } [^\:]* { printf(" @@b{%s}\n\n",check_and_convert(yytext)); } ":" { statep--; BEGIN(states[statep]); } /* * recreate @@chapter, @@section etc. */ ^:[^:]* { (void)check_and_convert(&yytext[1]); statep++; states[statep] = HEADING; BEGIN(HEADING); } :[^\n] { printf("@@item @@b{%s}\n",buffer); write_underline(strlen(buffer),6,'~'); statep--; BEGIN(states[statep]); } :\n"*"* { if(need_closing == TRUE){ printf("@@end table\n\n\n"); need_closing = FALSE; } printf("@@chapter %s\n",buffer); write_underline(strlen(buffer),9,'*'); statep--; BEGIN(states[statep]); } :\n"="* { if(need_closing == TRUE){ printf("@@end table\n\n\n"); need_closing = FALSE; } printf("@@section %s\n",buffer); write_underline(strlen(buffer),9,'='); statep--; BEGIN(states[statep]); } "@@" printf("@@@@"); :\n"-"* { if(need_closing == TRUE){ printf("@@end table\n\n\n"); need_closing = FALSE; } printf("@@subsection %s\n",buffer); write_underline(strlen(buffer),12,'-'); statep--; BEGIN(states[statep]); } /* * recreate @@example text */ ^" " { printf("@@example\n"); statep++; states[statep] = EXAMPLE; BEGIN(EXAMPLE); } ^" " . ECHO; %% /* * initialise and go. */ int main(int argc, char *argv[]) { states[0] = INITIAL; statep = 0; print_header(); yylex(); print_trailer(); return(0); } @ 1.1.1.1 log @from sourceforge. @ text @@