loncom/homework/CAPA-converter/capaLexerDef.flex - view

File: [LON-CAPA] / loncom / homework / CAPA-converter / capaLexerDef.flex
Revision 1.21: download - view: text, annotated - select for diffs
Thu Sep 12 15:54:06 2002 UTC (22 years, 3 months ago) by albertel
Branches: MAIN
CVS tags: version_2_9_X, version_2_9_99_0, version_2_9_1, version_2_9_0, version_2_8_X, version_2_8_99_1, version_2_8_99_0, version_2_8_2, version_2_8_1, version_2_8_0, version_2_7_X, version_2_7_99_1, version_2_7_99_0, version_2_7_1, version_2_7_0, version_2_6_X, version_2_6_99_1, version_2_6_99_0, version_2_6_3, version_2_6_2, version_2_6_1, version_2_6_0, version_2_5_X, version_2_5_99_1, version_2_5_99_0, version_2_5_2, version_2_5_1, version_2_5_0, version_2_4_X, version_2_4_99_0, version_2_4_2, version_2_4_1, version_2_4_0, version_2_3_X, version_2_3_99_0, version_2_3_2, version_2_3_1, version_2_3_0, version_2_2_X, version_2_2_99_1, version_2_2_99_0, version_2_2_2, version_2_2_1, version_2_2_0, version_2_1_X, version_2_1_99_3, version_2_1_99_2, version_2_1_99_1, version_2_1_99_0, version_2_1_3, version_2_1_2, version_2_1_1, version_2_1_0, version_2_12_X, version_2_11_X, version_2_11_5_msu, version_2_11_5, version_2_11_4_uiuc, version_2_11_4_msu, version_2_11_4, version_2_11_3_uiuc, version_2_11_3_msu, version_2_11_3, version_2_11_2_uiuc, version_2_11_2_msu, version_2_11_2_educog, version_2_11_2, version_2_11_1, version_2_11_0_RC3, version_2_11_0_RC2, version_2_11_0_RC1, version_2_11_0, version_2_10_X, version_2_10_1, version_2_10_0_RC2, version_2_10_0_RC1, version_2_10_0, version_2_0_X, version_2_0_99_1, version_2_0_2, version_2_0_1, version_2_0_0, version_1_99_3, version_1_99_2, version_1_99_1_tmcc, version_1_99_1, version_1_99_0_tmcc, version_1_99_0, version_1_3_X, version_1_3_3, version_1_3_2, version_1_3_1, version_1_3_0, version_1_2_X, version_1_2_99_1, version_1_2_99_0, version_1_2_1, version_1_2_0, version_1_1_X, version_1_1_99_5, version_1_1_99_4, version_1_1_99_3, version_1_1_99_2, version_1_1_99_1, version_1_1_99_0, version_1_1_3, version_1_1_2, version_1_1_1, version_1_1_0, version_1_0_99_3, version_1_0_99_2, version_1_0_99_1, version_1_0_99, version_1_0_3, version_1_0_2, version_1_0_1, version_1_0_0, version_0_99_5, version_0_99_4, version_0_99_3, version_0_99_2, version_0_99_1, version_0_99_0, version_0_6_2, version_0_6, loncapaMITrelate_1, language_hyphenation_merge, language_hyphenation, conference_2003, bz6209-base, bz6209, bz5969, bz2851, PRINT_INCOMPLETE_base, PRINT_INCOMPLETE, HEAD, GCI_3, GCI_2, GCI_1, BZ5971-printing-apage, BZ5434-fox, BZ4492-merge, BZ4492-feature_horizontal_radioresponse, BZ4492-feature_Support_horizontal_radioresponse, BZ4492-Support_horizontal_radioresponse

- From Mark Lucas,
 Fixes a few things with /DIS in scripts, eval with fml,
braces around variables.

/* The LearningOnline Network with CAPA * CAPA lexer dfinition, heavily modified to become a LON-CAPA convertor * $Id: capaLexerDef.flex,v 1.21 2002/09/12 15:54:06 albertel Exp $ * * Copyright Michigan State University Board of Trustees * * This file is part of the LearningOnline Network with CAPA (LON-CAPA). * * LON-CAPA is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * LON-CAPA is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with LON-CAPA; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * * /home/httpd/html/adm/gpl.txt * * http://www.lon-capa.org/ */ /*------------------------------------------------------------------------*/ /* capaLexerDef.flex created by Isaac Tsai Jul 15 1996 */ /* added /END(variable) */ /* added /HIN .... /DIS(variable) ... */ /* Jan 15 1998 /{KeyWord}{KeyWord}{KeyWord} */ /* replaced by /DIS */ /* catch "No /END() statement found" */ /* catch "/DIS(")" and "/DIS(""")" errors " */ /* catch "/LET var = " */ /* add a new token EoL to indicate '\n' '\r''\n' and '\r' */ /* This file is based on flex 2.5.3, flex 2.3 apparantly cannot take it :-( */ /* DONE /RMAP() function July 14, 1998 */ /* DONE /AND /OR answer formats July 20, 1998 */ /* DONE /IF () /ENDIF July 26, 1998 */ /* DONE /WHILE () /ENDWHILE August 10 1998 */ /* DONE /VERB /ENDVERB Feb 20 1998 */ /*------------------------------------------------------------------------*/ /**************************************************************************/ %{ #include <stdio.h> #include <stdlib.h> /* strtod(), strtol() */ #include <string.h> #ifdef NeXT #include <sys/file.h> #else #include <unistd.h> /* access() */ #endif #include "capaCommon.h" /* capa_access() */ #include "capaParser.h" /* _symbol structure def */ #include "lex_debug.h" /* defined RETURN(xxx) macro */ #ifdef YYSTYPE #undef YYSTYPE #endif #define YYSTYPE Symbol_p #include "capaToken.h" /* from YACC -d capaGrammarDef.y */ /* ============================================== begin of code */ #define LEX_BUFLEN (8*1024) /* lexical buffer size (for each opened file) */ #ifdef YYLMAX #undef YYLMAX #define YYLMAX 8192 #endif void yyfatalerror(char*msg); #define YY_FATAL_ERROR yyfatalerror #ifdef LEX_DBUG #define LLDBUG_PRL1(xx) { printf("Line %d ",Current_line[Input_idx]); printf(xx); fflush(stdout); } #define LLDBUG_PRL2(xx,yy) { printf("Line %d ",Current_line[Input_idx]); printf(xx,yy); fflush(stdout); } #define LLDBUG_PR1(xx) { printf(xx); fflush(stdout); } #define LLDBUG_PR2(xx,yy) { printf(xx,yy); fflush(stdout); } #define LLDBUG_PR3(xx,yy,zz) { printf(xx,yy,zz); fflush(stdout); } #else #define LLDBUG_PRL1(xx) { } #define LLDBUG_PRL2(xx,yy) { } #define LLDBUG_PR1(xx) { } #define LLDBUG_PR2(xx,yy) { } #define LLDBUG_PR3(xx,yy,zz) { } #endif #ifdef LEX_INPUT_DBUG #define LIDBUG_PR1(xx) { printf(xx); fflush(stdout); } #define LIDBUG_PR2(xx,yy) { printf(xx,yy); fflush(stdout); } #define LIDBUG_PR3(xx,yy,zz) { printf(xx,yy,zz); fflush(stdout); } #else #define LIDBUG_PR1(xx) { } #define LIDBUG_PR2(xx,yy) { } #define LIDBUG_PR3(xx,yy,zz) { } #endif #ifdef USE_DYNAMIC_SYMBOLS #define USE_DYNAMIC_LEXBUFS #endif Symbol *yylval; /* global pointer to symbol */ FILE *(Input_stream[MAX_OPENED_FILE]); /* <-- perhaps we can use linked list */ char Opened_filename[MAX_OPENED_FILE][QUARTER_K]; /* <-- perhaps we can use linked list */ int Input_idx; int Lexi_pos[MAX_OPENED_FILE]; /* Current position in the line */ #ifdef USE_DYNAMIC_LEXBUFS char *(Lexi_buf[MAX_OPENED_FILE]); /* Line Buffer for current file */ #else char Lexi_buf[MAX_OPENED_FILE][LEX_BUFLEN+4]; /* Line Buffer for current file */ #endif /* USE_DYNAMIC_LEXBUFS */ char String_buf[LEX_BUFLEN]; /* Constant String buffer <-- perhaps we can use char pointer */ char *Dynamic_buf; int Dynamic_buf_max; int Dynamic_buf_cur; static int End_of_input; static int Pcount, Bcount; /* static means only available in this file */ /* --------------------------------------------------------------------------- */ /* GLOBAL VARIABLES */ /* --------------------------------------------------------------------------- */ int Lexi_line; /* Current source file line number, counting from beginning */ extern int Current_line[MAX_OPENED_FILE]; int Func_idx; Symbol FuncStack[MAX_FUNC_NEST]; /* <-- perhaps we can use linked list */ int Array_idx; Symbol *ArraySymbList_p; Symbol *ArraySymbLast_p; Symbol *FmlSymbList_p; Symbol *FmlSymbLast_p; int FmlSymb_cnt; int Symb_count; int IFcount; WhileLoop_t WhileStack[MAX_FUNC_NEST]; /* <-- perhaps we can use linked list */ int While_idx, Wcount; int sccount; /* Semi-colon count for MAP and RMAP */ int HINTflag=0; int EXPflag=0; int EVALflag=0; int compound_answer=0; int essay_answer=0; #ifdef USE_DYNAMIC_SYMBOLS Symbol *SymbList_p; Symbol *SymbLast_p; #else Symbol SymbArray[MAX_SYMB_COUNT]; #endif /* USE_DYNAMIC_SYMBOLS */ char *Current_char_p; /* Collect string constant */ extern char *EndText_p; extern char *StartText_p; extern Problem_t *LexiProblem_p; extern Problem_t *LastProblem_p; int first_run=1; int Stop_Parser; static int dosend=1; static int firstparam=1; #define FLEX #define YY_STACK_USED 1 /* for yy_push_state(), yy_pop_state() */ #ifdef FLEX int capaL_unput(); int capaL_input(); /* YY_INPUT() Controls scanner input. By default, YY_INPUT reads from the file-pointer yyin. Its action is to place up to max_size characters in the character array buf and return in the integer variable result either the number of characters read or the constant YY_NULL to indicate EOF. max_size is defined to be num_to_read = 8192 in liby Following is a sample redefinition of YY_INPUT, in the definitions section of the input file: %{ #undef YY_INPUT #define YY_INPUT(buf,result,max_size)\ {\ int c = getchar();\ result = (c == EOF) ? YY_NULL : (buf[0] = c, 1);\ } %} */ /* fgets() reads the input stream until n-1 bytes have been read OR a newline character is read and transferred to string OR an EOF (End-of-File) condition is encountered The string is then terminated with a NULL character. ii = fseek(FILE *stream,0L,SEEK_END) ; if(ii!=0) { error } leng = ftell(FILE *stream) + 1 ; fseek(FILE *stream,0L,SEEK_SET) ; Lexi_buf[Input_idx] = (char *)capa_malloc(sizeof(char)*leng,1); */ #ifdef AVOIDYYINPUT #define MAX_INCLUDE_DEPTH 10 YY_BUFFER_STATE include_stack[MAX_INCLUDE_DEPTH]; int include_stack_ptr = 0; #else #ifdef USE_DYNAMIC_LEXBUFS #define NEWYYINPUT #endif #ifdef NEWYYINPUT void newyy_input (char *buf,int *result,int max_size); #define YY_INPUT(buf,result,max_size) newyy_input(buf,&result,max_size) #else #ifdef USE_DYNAMIC_LEXBUFS #define YY_INPUT(buf,result,max_size) \ { int ii, leng, out_of_char; \ if (!Lexi_line) { /* was startup */ \ for(ii=0;ii < MAX_OPENED_FILE;ii++) { \ Lexi_buf[ii] = NULL; \ Lexi_pos[ii] = 0; \ Current_line[ii] = 0; \ } \ Input_idx = 0; \ first_run=0; \ yyin = Input_stream[Input_idx]; LIDBUG_PR1("<<yy_input() startup>>\n"); \ } \ out_of_char = 0; \ if ( Lexi_buf[Input_idx] == NULL ) { \ Lexi_buf[Input_idx] = (char *)capa_malloc(sizeof(char)*LEX_BUFLEN+1,1); out_of_char=1; \ } else { \ if (!Lexi_buf[Input_idx][Lexi_pos[Input_idx]]) { /* test if the line buffer is empty or at the end */ \ out_of_char=1; \ } \ } \ if( out_of_char ) { \ if (fgets(Lexi_buf[Input_idx],LEX_BUFLEN-1,Input_stream[Input_idx])==NULL) { /* read in one line */ \ LIDBUG_PR2("<<yy_input() fgets() returns NULL, input index=%d>>\n",Input_idx); \ if( (Input_idx > 0) && ( Lexi_buf[Input_idx][Lexi_pos[Input_idx]] == '\0') ) { \ LIDBUG_PR2("<<yy_input() close an input stream, input index=%d>>\n",Input_idx); \ fclose(Input_stream[Input_idx]); \ capa_mfree((char *)Lexi_buf[Input_idx]); \ Lexi_buf[Input_idx] = NULL; \ Input_idx--; \ yyin = Input_stream[Input_idx]; \ /* (Lexi_pos[Input_idx])++; */ \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ result = 1; \ } else { \ result = YY_NULL; /* End of File */ \ } \ } else { /* successfully read in one line */ \ if (Lexi_buf[Input_idx]==NULL) puts("Whatup?");\ leng = strlen(Lexi_buf[Input_idx]); \ LIDBUG_PR3("<<yy_input() read into buffer a line(leng=%d), input index=%d>>\n",leng,Input_idx); \ Lexi_pos[Input_idx] = 0; \ Lexi_line++; \ Current_line[Input_idx]++; \ (Lexi_pos[Input_idx])++; \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ /* need to take care of return continuation conditions */ \ /* so, we return to one-char-at-a-time approach */ \ /* for(ii=0;ii<leng;ii++) { */ \ /* buf[ii] = Lexi_buf[Input_idx][ii]; */ \ /* } */ \ /* buf[ii] = '\0'; */ \ /* printf("YY_INPUT()(Lexi_line=%d,max size=%d)(%c)",Lexi_line,max_size,buf[0]); */ \ result = 1; \ } \ } else { \ /* LIDBUG_PR2("<<yy_input() increase Lexi_pos, input index=%d>>\n",Input_idx); */ \ (Lexi_pos[Input_idx])++; \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ result = 1; \ } \ if (Stop_Parser==1) { \ result = YY_NULL; \ } \ } #else #define YY_INPUT(buf,result,max_size) \ { int ii, leng; \ if (!Lexi_line) { /* was startup */ \ for(ii=0;ii < MAX_OPENED_FILE;ii++) { \ Lexi_buf[ii][0]=0; \ Lexi_pos[ii] = 0; \ Current_line[ii] = 0; \ } \ Input_idx = 0; \ first_run=0; \ yyin = Input_stream[Input_idx]; LIDBUG_PR1("<<yy_input() startup>>\n"); \ } \ if (!Lexi_buf[Input_idx][Lexi_pos[Input_idx]]) { /* test if the line buffer is empty or at the end */ \ if (fgets(Lexi_buf[Input_idx],LEX_BUFLEN-1,Input_stream[Input_idx])==NULL) { /* read in one line */ \ LIDBUG_PR2("<<yy_input() fgets() returns NULL, input index=%d>>\n",Input_idx); \ if( (Input_idx > 0) && ( Lexi_buf[Input_idx][Lexi_pos[Input_idx]] == '\0') ) { \ LIDBUG_PR2("<<yy_input() close an input stream, input index=%d>>\n",Input_idx); \ fclose(Input_stream[Input_idx]); \ Input_idx--; \ yyin = Input_stream[Input_idx]; \ /* (Lexi_pos[Input_idx])++; */ \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ result = 1; \ } else { \ result = YY_NULL; /* End of File */ \ } \ } else { /* successfully read in one line */ \ leng = strlen(Lexi_buf[Input_idx]); \ LIDBUG_PR3("<<yy_input() read into buffer a line(leng=%d), input index=%d>>\n",leng,Input_idx); \ Lexi_pos[Input_idx] = 0; \ Lexi_line++; \ Current_line[Input_idx]++; \ (Lexi_pos[Input_idx])++; \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ /* need to take care of return continuation conditions */ \ /* so, we return to one-char-at-a-time approach */ \ /* for(ii=0;ii<leng;ii++) { */ \ /* buf[ii] = Lexi_buf[Input_idx][ii]; */ \ /* } */ \ /* buf[ii] = '\0'; */ \ /* printf("YY_INPUT()(Lexi_line=%d,max size=%d)(%c)",Lexi_line,max_size,buf[0]); */ \ result = 1; \ } \ } else { \ /* LIDBUG_PR2("<<yy_input() increase Lexi_pos, input index=%d>>\n",Input_idx); */ \ (Lexi_pos[Input_idx])++; \ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; \ result = 1; \ } \ if (Stop_Parser==1) { \ result = YY_NULL; \ } \ } #endif /* USE_DYNAMIC_LEXBUFS */ #endif /*NEWYYINPUT*/ #endif /*AVOIDYYINPUT*/ #else #undef input #undef unput #endif int capa_eof(); %} Alpha [a-zA-Z_] KeyChar [A-Z] AlphaNum [a-zA-Z_0-9] Number [0-9] HexNumber [0-9a-fA-F] Space [ \t] Spaces ({Space}*) FileName (\"[^"\n]*\") Qchar ([0-9a-zA-Z \t!?\._,:;'"`~@#$%\^&\+\-\*=|\[\]{}()]) Operator ([=\+\-\*/%<>!&|,]) Identifier ([a-zA-Z_][a-zA-Z_0-9]*) EndLine ([\r][\n]|[\n]) %a 10500 %o 15000 %k 10000 %p 10000 %n 1000 %x S_COMMENT S_HINT S_HINTEXLAINX S_IMPORT S_EXPLAIN S_ENDX S_UNIT S_IGNORE %x S_SKIP S_VARIABLE S_LET S_DEFINE S_TEXT S_MAP S_FIGURE S_ANSWER %x S_STRING S_ANSCONTINUE S_TRUE_FALSE_STMT S_WHILE_SKIP %x S_NEXT_LINE S_VERB S_ECHO S_STRINGINANS %array %% <S_IGNORE>{ {EndLine} BEGIN S_IGNORE; [^\n]*$ BEGIN S_IGNORE; <<EOF>> { capa_eof(); #ifndef AVOIDYYINPUT yyterminate(); #endif } } <S_COMMENT>{ {EndLine}{Spaces}"//"[^\n]*$ {LLDBUG_PRL2("[COMMENT<%s>]\n",yytext); send("# %s\n",&yytext[2]); } [^\n]*{EndLine} { send("\n"); BEGIN S_TEXT; } } <S_TEXT>{ ^{Spaces}"/LET" | ^{Spaces}"/BEG" { LLDBUG_PRL1("[LET]"); Pcount = 0; BEGIN S_LET; start_mode(MODE_SCRIPT,NULL); } ^{Spaces}"/VERB" { LLDBUG_PRL1("[VERBATIM]"); BEGIN S_VERB; start_mode(MODE_OUTTEXT,NULL); send("<PRE>\n"); } ^{Spaces}"/HIN"{Alpha}*{Spaces} { LLDBUG_PRL1("[HIN]"); /* start_mode(MODE_HINT, "");*/ if (!HINTflag) { start_streams(HINT_DEST,1); HINTflag=-1; } change_destination(HINT_DEST); send("\t",NULL); BEGIN S_HINT; } ^{Spaces}"/EXP"{Alpha}*{Spaces} { if (!EXPflag) { start_streams(EXP_DEST,1); EXPflag=-1; } change_destination(EXP_DEST); send("\t",NULL); LLDBUG_PRL1("[EXP]"); Current_char_p = String_buf; BEGIN S_EXPLAIN; } ^{Spaces}"/IMP"{Alpha}*{Space}+ { LLDBUG_PRL1("[IMP]"); BEGIN S_IMPORT; end_mode(); } ^{Spaces}"/END" { LLDBUG_PRL1("[END]"); if ( (LexiProblem_p !=NULL) && (LexiProblem_p->question != NULL) && (LexiProblem_p->ans_type == 0)) { EndText_p=strsave(LexiProblem_p->question); LexiProblem_p=NULL; } else { EndText_p=NULL; } End_of_input = 1; BEGIN S_IGNORE; } ^{Spaces}"/START"[^\n]* { LLDBUG_PRL1("[START]"); if (LexiProblem_p !=NULL && LexiProblem_p->question != NULL) { StartText_p=strsave(LexiProblem_p->question); } else { StartText_p=NULL; } BEGIN S_TEXT; } ^{Spaces}"/END"{Spaces}[\(]{Spaces} { LLDBUG_PRL1("[END()]"); BEGIN S_ENDX; } ^"/DEF" { Bcount = 0; BEGIN S_DEFINE; RETURN(CAPA_DEF); } ^{Spaces}"/ANS" { LLDBUG_PRL2("[ANS(%s)]",yytext); Pcount = 0; BEGIN S_ANSWER; end_mode(); start_mode(MODE_ANSWER,NULL); send("<numericalresponse answer=\""); dosend=1; firstparam=1; compound_answer=0; essay_answer=0; } ^{Spaces}"/SUBJECTIVE" { LLDBUG_PRL1("[SUBJECTIVE ANSWER]"); Pcount = 0; BEGIN S_ANSWER; end_mode(); start_mode(MODE_ANSWER,NULL); send("<essayresponse"); dosend=1; firstparam=1; compound_answer=0; essay_answer=-1; } ^{Spaces}"/MAP" { LLDBUG_PRL1("[MAP]"); Pcount = 0; sccount = 0; BEGIN S_MAP; start_mode(MODE_SCRIPT,NULL);send("&map("); } ^{Spaces}"/RMAP" { LLDBUG_PRL1("[RMAP]"); Pcount = 0; sccount = 0; BEGIN S_MAP; start_mode(MODE_SCRIPT,NULL);send("&rmap("); } ^{Spaces}"/ENDWHILE"([^\n])* { int i; LLDBUG_PRL2("[ENDWHILE While_idx=<%d>]\n",IFcount); IFcount--; end_mode_stream(DEFAULT_DEST,0); for(i=0;i<IFcount;i++) {send("\t",NULL);} send_stream(0,"</while>"); send_stream(1,"}"); if (IFcount == 0) { if (watch_mode[current_dest][1]) { end_streams(DEFAULT_DEST,1); } else { end_streams(DEFAULT_DEST,0); } change_destination(DEFAULT_DEST); } delete_cache(); BEGIN S_TEXT; } "/WHILE" | ^{Spaces}"/WHILE" { int i; LLDBUG_PRL2("[WHILE While_idx=<%d>]\n",IFcount); IFcount++; /* advance the stack pointer */ BEGIN S_TRUE_FALSE_STMT; if ( IFcount == 1) { start_streams(DEFAULT_DEST, 2); change_destination(DEFAULT_DEST); watch_mode[current_dest][1]=1; } end_mode_stream(DEFAULT_DEST, 0); start_mode_stream(DEFAULT_DEST,1,MODE_SCRIPT,NULL); for(i=1;i<IFcount;i++) {send("\t",NULL);} send_stream(0,"<while condition=\"",NULL); send_stream(1,"while (",NULL); new_cache(); start_cache(); } ^{Spaces}"/IF" { int i; IFcount++; LLDBUG_PRL2("[IF <IFcount=%d>]",IFcount); BEGIN S_TRUE_FALSE_STMT; if ( IFcount == 1) { start_streams(DEFAULT_DEST, 2); change_destination(DEFAULT_DEST); watch_mode[current_dest][1]=1; } end_mode_stream(DEFAULT_DEST, 0); start_mode_stream(DEFAULT_DEST,1,MODE_SCRIPT,NULL); for(i=1;i<IFcount;i++) {send("\t",NULL);} send_stream(0,"<block condition=\"",NULL); send_stream(1,"if (",NULL); new_cache(); start_cache(); } ^{Spaces}"/ELSE"([^\n])* { int i; LLDBUG_PRL2("[ELSE <IFcount=%d>]\n",IFcount); end_mode_stream(DEFAULT_DEST,0); for(i=1;i<IFcount;i++) {send("\t",NULL);} send_stream(0, "</block>\n<block condition=\"!(%s)\">", cached_data[current_cache].str); send_stream(1,"} else {"); } ^{Spaces}"/ENDIF"([^\n])* { int i; IFcount--; end_mode_stream(DEFAULT_DEST,0); for(i=0;i<IFcount;i++) {send("\t",NULL);} send_stream(0,"</block>"); send_stream(1,"}"); if (IFcount == 0) { if (watch_mode[current_dest][1]) { end_streams(DEFAULT_DEST,1); } else { end_streams(DEFAULT_DEST,0); } change_destination(DEFAULT_DEST); } delete_cache(); LLDBUG_PRL2("[ENDIF <IFcount=%d>]\n",IFcount); } "/DIS" { /* since S_VARIABLE treat {Space} as null, so here we do not match ( */ /* so that between /DIS and ( can have as many {Space} as we want */ start_mode(MODE_OUTTEXT,NULL); LLDBUG_PR1("[DIS<]"); init_funcstack(); Pcount = 0; BEGIN S_VARIABLE; send("<display>"); start_delayed(); } {EndLine} { LLDBUG_PR1("[EoL within S_TEXT]\n"); /* end of the whole text line */ send("\n"); } [\\]{Space}*{EndLine} { LLDBUG_PR2("[\\EoL continue](%s)",yytext); /* continuation on next line */ } ^{Spaces}"//"[^\n]*$ { LLDBUG_PRL2("[COMMENT<%s>]\n",yytext); start_mode(MODE_SCRIPT,NULL); send("# %s\n",&yytext[2]); BEGIN S_COMMENT; } [^/\n\\]+$ | [/] | [\\] { start_mode(MODE_OUTTEXT,NULL); LLDBUG_PR2("[TEXT_LINE<%s>]",yytext); send(yytext); } ([^/\n])+[/] | ([^/\n])+[\\] { /* matches anything until a '/' or a '\' */ start_mode(MODE_OUTTEXT,NULL); LLDBUG_PR2("[TEXT_LINE( )<%s>]",yytext); yyless(yyleng-1); /* push back the last char */ BEGIN S_TEXT; send(yytext); } <<EOF>> { #ifdef AVOIDYYINPUT char warn_msg[ONE_K]; if ( (--include_stack_ptr < 0) || Stop_Parser) { if (Stop_Parser) { if ( LexiProblem_p!=NULL && LexiProblem_p->question != NULL) EndText_p=strsave(LexiProblem_p->question); while (include_stack_ptr >= 0) { yy_delete_buffer( YY_CURRENT_BUFFER ); yy_switch_to_buffer( include_stack[include_stack_ptr]); --include_stack_ptr; } } else { sprintf(warn_msg, "at End-of-File, a /END is needed.\n"); capa_msg(MESSAGE_ERROR,warn_msg); } free_problems(LexiProblem_p); LexiProblem_p=NULL; yyterminate(); } else { yy_delete_buffer( YY_CURRENT_BUFFER ); yy_switch_to_buffer(include_stack[include_stack_ptr]); } #else char warn_msg[ONE_K]; if (!Stop_Parser) { sprintf(warn_msg,"at End-of-File, a /END is needed.\n"); capa_msg(MESSAGE_ERROR,warn_msg); } else { if (LexiProblem_p != NULL && LexiProblem_p->question != NULL) EndText_p=strsave(LexiProblem_p->question); } capa_eof(); yyterminate(); #endif } } <S_ENDX>{ {Alpha}{AlphaNum}* { /* DONE: add codes to handle /END() */ char *question_end=NULL; End_of_input = 1; if (EndText_p!=NULL) capa_mfree((char*)EndText_p); if ((LexiProblem_p!=NULL) && (LexiProblem_p->question != NULL) && (LexiProblem_p->ans_type == 0)) { question_end=strsave(LexiProblem_p->question); } if( yyleng > 0 ) { LLDBUG_PRL2("[END()<%s>]\n",yytext); /*yylval = find_identifier(yytext);*/ switch(yylval->s_type) { case IDENTIFIER: case I_VAR: case I_CONSTANT: case R_VAR: case R_CONSTANT: break; case S_VAR: case S_CONSTANT: EndText_p = strsave(yylval->s_str); if (question_end) { int leng; char *new_end; leng = strlen(EndText_p) + strlen(question_end) + 1; new_end = capa_malloc(sizeof(char), leng); strcat(new_end, question_end); strcat(new_end, EndText_p); capa_mfree(EndText_p); capa_mfree(question_end); EndText_p=new_end; } break; default: break; } } BEGIN S_IGNORE; RETURN(CAPA_END); } {Space}* { /* ignore spaces */ } [\)] { /* a right paren */ if ( (LexiProblem_p != NULL) && (LexiProblem_p->question != NULL) && (LexiProblem_p->ans_type == 0)) { EndText_p=strsave(LexiProblem_p->question); } else { EndText_p=NULL; } BEGIN S_IGNORE; RETURN(CAPA_END); } } <S_HINT,S_EXPLAIN>{ [/][Dd][Ii][Ss]{Space}*[\(]{Space}* { yy_push_state(S_HINTEXLAINX); } [^/\n]+[/\\] { char *aptr = yytext; yyless(yyleng-1); send(aptr); } [/] { send("/"); } [\\] { send("\\"); } [\\]{Space}*[\n] { LLDBUG_PR1("[\\CR hint explain continue]"); /* Hint and explain continuation */ send("\n\t");} [^/\n\\]+$ {char *aptr = yytext; send(aptr); } } <S_HINT>{ {EndLine} { LLDBUG_PR1("[CR hint]"); send("\n"); change_destination(DEFAULT_DEST); BEGIN S_TEXT; } } <S_EXPLAIN>{ {EndLine} { LLDBUG_PR1("[CR explain]"); send("\n"); change_destination(DEFAULT_DEST); BEGIN S_TEXT; } } <S_HINTEXLAINX>{ {Alpha}{AlphaNum}* {send("${%s}",yytext);} {Space}+ { } [)] { yy_pop_state(); } } <S_IMPORT>{ {FileName}{Space}* { char *endquote; end_mode(); start_mode(MODE_IMPORT,NULL); /* Get rid of leading and trailing quotes */ endquote = strrchr(yytext,'\"'); *endquote = '\0'; if (yytext[1] == '/') { send("%s%s",import_prefix,&yytext[1]); } else { send("%s",&yytext[1]); } end_mode(); BEGIN S_SKIP; } {Identifier}{Space}* { end_mode(); start_mode(MODE_IMPORT,NULL); send("${%s}",yytext); end_mode(); BEGIN S_SKIP; } } <S_ANSWER>{ [Pp][Ll][Uu][Ss] { LLDBUG_PR1("[PLUS]"); add_delayed("+");} [Mm][Ii][Nn][Uu][Ss] { LLDBUG_PR1("[MINUS]"); add_delayed("-");} [Cc][Ss] { LLDBUG_PR1("[CS]"); send("cs");} [Cc][Ii] { LLDBUG_PR1("[CI]"); send("ci");} [Mm][Cc] { LLDBUG_PR1("[MC]"); send("mc");} [Ff][Mm][Ll] { LLDBUG_PR1("[FORMULA]"); send("fml"); } [Oo][Nn] | [Yy][Ee][Ss] { LLDBUG_PR1("[ON]"); send("on");} [Oo][Ff][Ff] | [Nn][Oo] { LLDBUG_PR1("[OFF]"); send("off");} [Ff][Mm][Tt] { LLDBUG_PR1("[FMT]"); } [Uu][Nn][Ff][Mm][Tt] { LLDBUG_PR1("[UNFMT]"); } [,=] { LLDBUG_PR2("[symbol(%s)]",yytext);} [%] { LLDBUG_PR2("[symbol(%s)]",yytext); if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%%%s",yytext); } [:@#-] { LLDBUG_PR2("[symbol(%s)]",yytext); if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } "<" { LLDBUG_PR2("[symbol(%s)]",yytext); if (!EVALflag) { if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } } ">" { LLDBUG_PR2("[symbol(%s)]",yytext); if (!EVALflag) { if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } else { EVALflag = 0; } } [Pp][Cc][Rr] | [Hh][Gg][Rr] { if (firstparam) { firstparam=0; } else { add_delayed("\" />\n\t"); } add_delayed("<responseparam name=\"hgr\" type=\"on|off\" default=\""); dosend=2; } [Tt][Oo][Ll] { LLDBUG_PR2("[tol(%s)]",yytext); if (firstparam) { firstparam=0; } else { add_delayed("\" />\n\t"); } add_delayed("<responseparam name=\"tol\" type=\"tolerance\" description=\"Numerical Tolerance\" default=\""); dosend=2; } [Ss][Ii][Gg] { LLDBUG_PR2("[SIG(%s)]",yytext); if (firstparam) { firstparam=0; } else { add_delayed("\" />\n\t"); } add_delayed("<responseparam name=\"sig\" type=\"int_range,0-12\" description=\"Significant Figures\" default=\""); dosend=2; } [Ss][Tt][Rr] { LLDBUG_PR1("[STR]"); send("\" type=\""); dosend=1; } [Ee][Vv][Aa][Ll] | [Ee][Vv][Aa][Ll][Uu][Aa][Tt][Ee] { LLDBUG_PR1("[EVAL]");send("\" eval=\""); EVALflag=1; dosend=1;} [Uu][Nn][Ii][Tt] | [Uu][Nn][Ii][Tt][Ss] { LLDBUG_PR1("[UNIT]"); send("\" unit=\""); dosend=1;} [Ee][Xx][Tt][Ee][Rr][Nn][Aa][Ll] { LLDBUG_PR1("[EXTERNAL]"); dosend=0; } [Aa][Nn][Ss][Bb][Oo][Xx] { LLDBUG_PR1("[SHOW_ANS_BOX]"); dosend=0; } [Vv][Ee][Rr][Bb][Aa][Tt][Ii][Mm] { LLDBUG_PR1("[VERBATIM]"); dosend=0; } [Bb][Rr] { LLDBUG_PR1("[SHOW_BR]"); dosend=0; } [Pp][Aa][Tt][Hh] { send("\" path=\""); dosend=0; } [Cc][Aa][Ll][Cc] { send("\" calc=\""); dosend=0; } [Ee][Xx][Pp][Ll][Aa][Ii][Nn] { LLDBUG_PR1("[EXPLAIN]"); dosend=0; } [Hh][Ii][Nn][Tt] { LLDBUG_PR1("[HINT]"); dosend=0; } [Tt][Rr][Yy] | [Tt][Rr][Ii][Ee][Ss] { LLDBUG_PR1("[TRY]"); dosend=0; } [Ww][Gg][Tt] { LLDBUG_PR1("[WGT]"); dosend=0; } [\)] { LLDBUG_PR1("[)]"); Pcount--; if(Pcount==0) { BEGIN S_ANSCONTINUE; } if (essay_answer) { send(">\n\t"); } else { send("\">\n\t"); } dosend=1; flush_delayed(); if (firstparam!=1) send("\" />\n"); if (essay_answer) { send(" <textfield>Enter your answer here.</textfield>\n"); } else { send("\t<textline />\n"); } /* Fill in Hints */ if ( !is_dest_empty(HINT_DEST) ) { send("\t<hintgroup>\n\t<hintpart on=\"default\">\n\t<startouttext />"); end_streams(HINT_DEST,0); HINTflag=0; send("\t<endouttext />\n\t</hintpart>\n\t</hintgroup>\n"); } if (essay_answer) { send("</essayresponse>\n"); } else { send("</numericalresponse>\n"); } } } <S_VARIABLE>{ {Alpha}{AlphaNum}* { LLDBUG_PR2("[ID<%s>]",yytext); LLDBUG_PR2("[SYMB CNT=<%d>]", Symb_count); if(Pcount <= 1) { if (dosend==1) send("${%s}",yytext); if (dosend==2) add_delayed("${%s}",yytext); } else { if (dosend==1) send("$%s",yytext); if (dosend==2) add_delayed("$%s",yytext); } } } <S_VARIABLE,S_TRUE_FALSE_STMT,S_LET,S_MAP,S_ANSWER>{ {Alpha}{AlphaNum}* { LLDBUG_PR2("[ID<%s>]",yytext); LLDBUG_PR2("[SYMB CNT=<%d>]", Symb_count); if (dosend==1) send("$%s",yytext); if (dosend==2) add_delayed("$%s",yytext); } {Alpha}{AlphaNum}*{Space}*[(] { if (dosend==1) send("&%s",yytext); if (dosend==2) add_delayed("&%s",yytext); Pcount++; } {Alpha}{AlphaNum}*{Space}*[\[] { LLDBUG_PR2("[ARRAY<%s>]",yytext); yyless(yyleng-1); /*<-- push back char '[' */ if (dosend==1) send("$%s",yytext); if (dosend==2) add_delayed("$%s",yytext); } {Number}*"\."{Number}*[Ee]"+"{Number}+ | {Number}*"\."{Number}*[Ee]{Number}+ | {Number}*"\."{Number}*[Ee]"-"{Number}+ | {Number}+[Ee]"+"{Number}+ | {Number}+[Ee]{Number}+ | {Number}+[Ee]"-"{Number}+ | {Number}+"\."{Number}* | "\."{Number}+ { LLDBUG_PR2("[REAL<%s>]",yytext); if(dosend==1) send("%s",yytext); if(dosend==2) add_delayed("%s",yytext); } {Number}+ { LLDBUG_PR2("[INT<%s>]",yytext); if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } [\[] { LLDBUG_PR1("[dis let ans map '[']"); if(dosend==1) send("%s",yytext); if(dosend==2) add_delayed("%s",yytext); } [\]] { LLDBUG_PR1("[dis let ans map ']']"); if(dosend==1) send("%s",yytext); if(dosend==2) add_delayed("%s",yytext); } {Space}+ { /* LLDBUG_PR1("[SP ignored]"); Ignore Spaces */ } } <S_VARIABLE,S_TRUE_FALSE_STMT,S_MAP,S_LET>{ [\"] { LLDBUG_PR1("[TF,V,LET,MAP str\" ]"); Current_char_p = String_buf; send("'"); yy_push_state(S_STRING); } } <S_ANSWER>{ [\"] { LLDBUG_PR1("[ANS str\" ]"); Current_char_p = String_buf; yy_push_state(S_STRINGINANS); } } <S_VARIABLE,S_TRUE_FALSE_STMT,S_MAP,S_ANSWER>{ [$] { LLDBUG_PR1("[let if ans map (]"); Pcount++; if (Pcount > 1 ) { if (dosend==1) send(yytext); if (dosend==2) add_delayed(yytext); } } } <S_LET>{ [\(] { LLDBUG_PR1("[let (]"); Pcount++; send(yytext); } } <S_VARIABLE>[:]{Number}+[EeFf] { end_delayed(); send("&format("); flush_delayed(); send(",'%s')",yytext+1); } <S_ANSWER>[:]{Number}+[EeFf] { if (dosend) send("\" format=\"%s",yytext+1); } <S_MAP>{ [;] { if (sccount==0) { send(",[\\"); sccount++; } else if (sccount==1) { send("],["); sccount++; } } [,] { if (sccount==1) { send(",\\"); } else { send(","); } } [$] { LLDBUG_PR1("[) in MAP]"); Pcount--; if(Pcount==0) { BEGIN S_SKIP; } /* you might need a ; in the string below */ send("]%c;\n",yytext[0]); sccount=0; } } <S_VARIABLE>{ "+" { send(".");} } <S_VARIABLE,S_TRUE_FALSE_STMT,S_LET,S_MAP>{ "==" { LLDBUG_PR1("[==]"); send(" eq "); } "!=" { LLDBUG_PR1("[!=]"); send(" ne "); } ">" { LLDBUG_PR1("[>]"); send(yytext); } ">=" { LLDBUG_PR1("[>=]"); send(yytext); } "<" { LLDBUG_PR1("[<]"); send(yytext); } "<=" { LLDBUG_PR1("[<=]"); send(yytext); } "&&" { LLDBUG_PR1("[&&]"); send(yytext); } "||" { LLDBUG_PR1("[||]"); send(yytext); } "//" { if(Pcount==0) { send("; #"); BEGIN S_ECHO; } } [%] {send("%%");} {Operator} { LLDBUG_PR2("[Op(%c) in VAR,TF_STMT,LET]",yytext[0]); send(yytext); } } <S_VARIABLE>{ [\)] { LLDBUG_PR1("[)]"); Pcount--; if(Pcount == 0) { send("</display>"); BEGIN S_TEXT; flush_delayed(); } else { send(yytext); } } [\\]{Space}*{EndLine} { LLDBUG_PR2("[\\EoL continue in S_VARIABLE (DIS?)](%s)",yytext); /* continuation on next line */ } {EndLine} { LLDBUG_PR1("[EoL within /dis()]\n"); } . { char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"When use a VARIABLE, an unexpected char [%c] is encountered.\n",yytext[0]); capa_msg(MESSAGE_ERROR,warn_msg); } } <S_TRUE_FALSE_STMT>{ [\)] { LLDBUG_PRL1("[) in TRUE_FALSE]"); Pcount--; if(Pcount == 0) { stop_cache(); send_stream(0,"\">\n"); send_stream(1,") {\n"); BEGIN S_NEXT_LINE; } else { send_stream(0,")"); send_stream(1,")"); } } [\\]{Space}*{EndLine} { LLDBUG_PR2("[\\EoL continue in S_TRUE_FALSE_STMT](%s)",yytext); /* continuation on next line */ } {EndLine} { LLDBUG_PR1("[EoL within /IF()]\n"); RETURN(EoL); } . { char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"In /IF(), an unexpected char [%c] is encountered.\n",yytext[0]); capa_msg(MESSAGE_ERROR,warn_msg); } } <S_STRING>{ [\\][\\] { /*char *aptr = yytext; while( *aptr ) *Current_char_p++ = *aptr++;*/ send(yytext); } [\\][\"] { /**Current_char_p++ = '"';*/ send("\\\""); } [\\]{Space}*[\n] { LLDBUG_PR2("[\\CR continue in S_STRING](%s)",yytext); /* continuation on next line */ } [\"] { /* end of a string constant -- */ send("'"); yy_pop_state(); } [%] { /*Escape percent signs so that vasprintf doesn't choke */ send("%%"); } [\'] { /* Escape single quotes so that perl doesn't choke */ send("\\\'"); } {EndLine} { /* check for termination of string constant */ char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"STRING not terminated properly, an EoL encountered in the middle.\n%s\n",String_buf); capa_msg(MESSAGE_ERROR,warn_msg); yy_pop_state(); } . { /*char *aptr = yytext; while( *aptr ) *Current_char_p++ = *aptr++;*/ send(yytext); } } <S_STRINGINANS>{ [\\][\\] { /*char *aptr = yytext; while( *aptr ) *Current_char_p++ = *aptr++;*/ if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } [\\][\"] { /**Current_char_p++ = '"';*/ if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } [\\]{Space}*[\n] { LLDBUG_PR2("[\\CR continue in S_STRING](%s)",yytext); /* continuation on next line */ } [\"] { /* end of a string constant -- */ yy_pop_state(); } {EndLine} { /* check for termination of string constant */ char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"STRING not terminated properly, an EoL encountered in the middle.\n%s\n",String_buf); capa_msg(MESSAGE_ERROR,warn_msg); yy_pop_state(); } . { /*char *aptr = yytext; while( *aptr ) *Current_char_p++ = *aptr++;*/ if (dosend==1) send("%s",yytext); if (dosend==2) add_delayed("%s",yytext); } } <S_LET>[\)] { LLDBUG_PR1("[) in LET]"); Pcount--;send(yytext); } <S_SKIP>{ [^\n]+$ { } {EndLine} { BEGIN S_TEXT; } } <S_ECHO>{ [^\n]+$ { send(yytext); } {EndLine} { send(yytext); BEGIN S_TEXT; } } <S_LET,S_ANSWER,S_MAP>{ [\\]{Space}*{EndLine} { LLDBUG_PR1("[\\EoL let ans map]"); /* continuation */ } {EndLine} { LLDBUG_PR1("[EoL END let ans map]\n"); if(Pcount == 0) BEGIN S_TEXT; send(";%s",yytext); } } <S_ANSCONTINUE>{ {Spaces}{EndLine}{Spaces}"/AND" { LLDBUG_PR1("[AND]"); compound_answer=-1; /* implicit in LON-CAPA */ } {Spaces}{EndLine}{Spaces}"/OR" { LLDBUG_PR1("[OR]"); compound_answer=-1; /*RETURN(ANS_OR); */ } {Spaces}{EndLine}{Spaces}"/ANS" { LLDBUG_PRL2("[ANS(%s)]",yytext); Pcount = 0; BEGIN S_ANSWER; end_mode(); if (!compound_answer) { if ( !is_dest_empty(EXP_DEST) ) { send("<postanswerdate>\n\t<startouttext />\n"); end_streams(EXP_DEST,0); EXPflag=0; send("\t<endouttext />\n</postanswerdate>\n"); } send("</part>\n<part>\n"); } start_mode(MODE_ANSWER,NULL); send("<numericalresponse answer=\""); dosend=1; firstparam=1; compound_answer=0; essay_answer=0; } {Spaces}{EndLine} { /* end of answer and/or other answers */ LLDBUG_PR1("[complete an answer<EoL>]"); if ( !is_dest_empty(EXP_DEST) ) { send("<postanswerdate>\n\t<startouttext />\n"); end_streams(EXP_DEST,0); EXPflag=0; send("\t<endouttext />\n</postanswerdate>\n"); } send("</part>\n<part>\n"); BEGIN S_TEXT; } {Spaces} { /* Do nothing */ } } <S_NEXT_LINE>{ ([.]*){EndLine} { /* this ignores everything until it hits an EoL */ LLDBUG_PRL2("[<S_NEXT_LINE> skip \'%s\' until EoL]\n",yytext); BEGIN S_TEXT; } } <S_WHILE_SKIP>{ ^{Spaces}"/WHILE"[^\n]*{EndLine} { Wcount++; LLDBUG_PRL2("[SkipWHILE /WHILE <Wcount=%d>]\n",Wcount); } ^{Spaces}"/ENDWHILE"[^\n]*{EndLine} { if(Wcount==0) { LLDBUG_PRL2("[SkipWHILE->/ENDWHILE <Wcount=%d>]\n",Wcount); BEGIN S_TEXT; } else { Wcount--; LLDBUG_PRL2("[SkipWHILE /ENDWHILE <Wcount=%d>]\n",Wcount); } } {EndLine} { LLDBUG_PRL1("[SkipWHILE a CR]\n"); } [^\n]*$ { LLDBUG_PRL2("[SkipWHILE anything <Wcount=%d>]",Wcount); } } <S_VERB>{ ^{Spaces}"/ENDVERB" { LLDBUG_PRL1("[END VERB]\n"); BEGIN S_TEXT; puts("\n</PRE>\n"); end_mode(); } .*|{EndLine} { send(yytext); } } %% /* ========================================================================================== */ extern void begin_while_skip() { Wcount=0; While_idx--; /* while is FALSE, pop it out from stack */ BEGIN S_WHILE_SKIP; } extern void begin_next_line() { BEGIN S_NEXT_LINE; } extern void begin_var() { BEGIN S_VARIABLE; } extern void begin_let() { BEGIN S_LET; } extern void begin_def() { BEGIN S_DEFINE; } extern void begin_ans() { BEGIN S_ANSWER; } extern void begin_map() { BEGIN S_MAP; } extern void begin_ignore() { BEGIN S_IGNORE; } extern void begin_text() { BEGIN S_TEXT; } extern void begin_question() { LLDBUG_PR1("[<S_TEXT>]"); IFcount = 0; While_idx=0; /* initialize some stacks */ End_of_input = 0; YY_FLUSH_BUFFER; BEGIN S_TEXT; } extern void end_problemset() { End_of_input = 0; YY_FLUSH_BUFFER; BEGIN S_TEXT; } /* ========================================================================================== */ #define NUM_KEY 2 int match_keyword(key) char *key; { char *keyword[NUM_KEY] = {"/DIS", "/DIR" }; int i; for(i=0;i < NUM_KEY; i++) { if( !strncmp(keyword[i], key, 4) ) { return (1); } } return (0); } int match_functionid(key) char *key; { char *keyword[NUM_KEY] = {"/DIS", "/DIR" }; int i; for(i=0;i < NUM_KEY; i++) { if( !strncmp(keyword[i], key, 4) ) { return (1); } } return (0); } /* -------------------------------------------------------------------------- */ /* -------------------------------------------------------------------------- */ void init_funcstack() { int ii; for(ii=0;ii<Func_idx;ii++) { capa_mfree(FuncStack[ii].s_name); } Func_idx = 0; } /* -------------------------------------------------------------------------- */ /* GET THE NEXT CHARACTER OF THE SOURCE FILE */ /* -------------------------------------------------------------------------- */ #ifdef FLEX int capaL_input() #else int /* RETURNS: next character */ input() /* ARGUMENTS: (none) */ #endif { /* LOCAL VARIABLES: */ static int startup=1; /* First call flag */ LLDBUG_PRL1("<<capaL_input() is called>>\n"); if (!Lexi_line) { /* was startup */ for(Input_idx=0;Input_idx < MAX_OPENED_FILE;Input_idx++) { /* for(ii=0;ii<LEX_BUFLEN;ii++) { Lexi_buf[Input_idx][ii]=0; } */ Lexi_buf[Input_idx][0]=0; Lexi_pos[Input_idx] = 0; } Input_idx = 0; startup=0; yyin = Input_stream[Input_idx]; } if (!Lexi_buf[Input_idx][Lexi_pos[Input_idx]]) { if (fgets(Lexi_buf[Input_idx],LEX_BUFLEN-1,Input_stream[Input_idx])==NULL) { /* EOF? */ /* no use in flex printf("capaL_input()EOF %s\n",Opened_filename[Input_idx+1]); fflush(stdout); */ return (0); } Lexi_pos[Input_idx] = 0; Lexi_line++; printf("input()(%d)\n",Lexi_line); } (Lexi_pos[Input_idx])++; return ( Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1] ); } /******************************************************************************/ /* PUSH BACK ONE CHARACTER OF THE INPUT */ /******************************************************************************/ int /* RETURNS: nothing */ capaL_unput(ch) /* ARGUMENTS: */ register int ch; /* Character to push */ { if (ch) (Lexi_pos[Input_idx])--; /* unput() stream cannot be re-defined */ /* unput(ch); inconsistency between YY_INPUT() and internal matched yytext */ return (0); } /******************************************************/ #ifndef DMALLOC char * strsave(char *s) { char *p; if (s==NULL) {return s;} p=capa_malloc(strlen(s)+1,1); strcpy(p,s); return (p); } #endif /* =========================================================================== */ #ifndef DMALLOC char * capa_malloc(unsigned num,unsigned sz) { char *p; p = calloc(num, sz); bzero(p, num*sz); /* added Jan 21 1998 */ return (p); } #endif #ifndef DMALLOC void capa_mfree(p) char *p; { free(p); } #endif void capa_msg(int type, char *p) { int idx, i, j; int len; char warn_msg[WARN_MSG_LENGTH]; char tmp_line[ONE_TWO_EIGHT]; char *tmp_str; strcpy(warn_msg,"File: "); idx=6; for(i=0;i<=Input_idx;i++) { len=strlen(Opened_filename[i]); for(j=0;j<len;j++) { warn_msg[idx++] = Opened_filename[i][j]; } if(i < Input_idx) { warn_msg[idx++]='-'; warn_msg[idx++]='>'; } warn_msg[idx]=0; } switch (type) { case MESSAGE_ERROR: sprintf(tmp_line,", Line %d: ERROR:", Current_line[Input_idx]); len=strlen(tmp_line); for(j=0;j<len;j++) { warn_msg[idx++] = tmp_line[j]; } warn_msg[idx]=0; append_error(warn_msg); append_error(p); break; case MESSAGE_WARN: default: sprintf(tmp_line,", Line %d: WARNING:", Current_line[Input_idx]); len=strlen(tmp_line); for(j=0;j<len;j++) { warn_msg[idx++] = tmp_line[j]; } warn_msg[idx]=0; j = strlen(warn_msg); len = strlen(p); tmp_str = (char *)capa_malloc(len+j+1,1); for(i=0;i<j;i++) { tmp_str[i]=warn_msg[i]; } for(i=j;i<j+len;i++) { tmp_str[i] = p[i-j]; } append_warn(type,tmp_str); capa_mfree(tmp_str); break; } } /* ======================================================================== */ void capa_warn_header(int type) { int idx, i, j; int len; char warn_msg[WARN_MSG_LENGTH]; char tmp_line[ONE_TWO_EIGHT]; strcpy(warn_msg,"File: "); idx=6; for(i=0;i<=Input_idx;i++) { len=strlen(Opened_filename[i]); for(j=0;j<len;j++) { warn_msg[idx++] = Opened_filename[i][j]; } if(i < Input_idx) { warn_msg[idx++]='-'; warn_msg[idx++]='>'; } warn_msg[idx]=0; } switch (type) { case MESSAGE_ERROR: sprintf(tmp_line,", Line %d: ERROR:", Current_line[Input_idx]); break; case MESSAGE_WARN: sprintf(tmp_line,", Line %d: WARNING:", Current_line[Input_idx]);break; default: sprintf(tmp_line,", Line %d: ERROR:", Current_line[Input_idx]);break; } len=strlen(tmp_line); for(j=0;j<len;j++) { warn_msg[idx++] = tmp_line[j]; } warn_msg[idx]=0; append_error(warn_msg); } /* --------------------------------------------------------------------------- */ #ifdef AVOIDYYINPUT void change_file(char *fname) { char warn_msg[WARN_MSG_LENGTH]; if ( include_stack_ptr >= MAX_INCLUDE_DEPTH ) { sprintf(warn_msg,"Includes nested too deeply" ); capa_msg(MESSAGE_ERROR,warn_msg); return; } include_stack[include_stack_ptr++] = YY_CURRENT_BUFFER; yyin = fopen( fname, "r" ); yy_switch_to_buffer( yy_create_buffer( yyin, YY_BUF_SIZE ) ); } void parse_filename(char *line) { char *start, fname[MAX_BUFFER_SIZE], warn_msg[WARN_MSG_LENGTH]; int ii,len; start = index(line, '\"'); /*** hpux complained */ if( start == NULL ) { sprintf(warn_msg,"/IMP was not given a filename.\n"); capa_msg(MESSAGE_ERROR,warn_msg); return; } start++; len = strlen(start) - 1; ii = 0; while( start[ii] != '\"' ) fname[ii++] = start[ii]; fname[ii] = 0; LLDBUG_PR2("[parse_filename<%s>]\n",fname); change_file(fname); } void parse_import_id(char *line) { char fname[QUARTER_K], warn_msg[WARN_MSG_LENGTH]; int ii, dup_open; Symbol *symb_p; int no_error = 0; ii = 0; while( line[ii] != '\0' && line[ii] != ' ' && line[ii] != '\n' && line[ii] != '\t' ) fname[ii++] = line[ii]; fname[ii] = 0; LLDBUG_PR2("[parse_import_id<%s>]\n",fname); /*symb_p = find_identifier(fname);*/ switch (symb_p->s_type) { case IDENTIFIER: sprintf(warn_msg,"/IMP %s, var is not defined.\n", fname); capa_msg(MESSAGE_ERROR,warn_msg); break; case I_VAR: case I_CONSTANT: case R_VAR: case R_CONSTANT: sprintf(warn_msg,"var cannot be a number.\n"); capa_msg(MESSAGE_ERROR,warn_msg); break; case S_VAR: case S_CONSTANT: sprintf(fname,"%s",symb_p->s_str); no_error = 1; break; } if( no_error ) change_file(fname); } #else void parse_filename(char *line) { char *start, fname[QUARTER_K], warn_msg[WARN_MSG_LENGTH]; int ii, len, dup_open; /* printf("IMPORT %s\n", line); */ start = index(line, '\"'); /*** hpux complained */ if( start != NULL ) { start++; len = strlen(start) - 1; ii = 0; while( start[ii] != '\"' ) { fname[ii] = start[ii]; ii++; } fname[ii] = 0; LLDBUG_PR2("[parse_filename<%s>]\n",fname); if(Input_idx < (MAX_OPENED_FILE -1)) { dup_open = 0; /* -- no need to check duplicated opening a file for(ii=0;ii<Input_idx;ii++) { if(strcmp(Opened_filename[ii],fname)==0) { dup_open =1; } } */ if( !dup_open ) { Input_idx++; Input_stream[Input_idx]=fopen(fname,"r"); sprintf(Opened_filename[Input_idx], "%s",fname); Current_line[Input_idx] = 0; } else { /* sprintf(warn_msg,"/IMP \"%s\", import file has already been imported.\n",fname); capa_msg(MESSAGE_WARN,warn_msg); */ Input_idx++; Input_stream[Input_idx]=fopen(fname,"r"); sprintf(Opened_filename[Input_idx], "%s",fname); Current_line[Input_idx] = 0; } } else { sprintf(warn_msg,"/IMP more the %d levels deep ignoring further imports.\n",MAX_OPENED_FILE-1); capa_msg(MESSAGE_WARN,warn_msg); } } else { sprintf(warn_msg,"%s, is not a valid file name.\n",line); capa_msg(MESSAGE_ERROR,warn_msg); } } void parse_import_id(char *line) { char fname[QUARTER_K], warn_msg[WARN_MSG_LENGTH]; int ii, dup_open; Symbol *symb_p; int no_error = 0; ii = 0; while (line[ii] != '\0' && line[ii] != ' ' && line[ii] != '\n' && line[ii] != '\t') { fname[ii] = line[ii]; ii++; } fname[ii] = 0; LLDBUG_PR2("[parse_import_id<%s>]\n",fname); /*symb_p = find_identifier(fname);*/ switch (symb_p->s_type) { case IDENTIFIER: sprintf(warn_msg,"/IMP %s, var is not defined.\n", fname); capa_msg(MESSAGE_ERROR,warn_msg); break; case I_VAR: case I_CONSTANT: case R_VAR: case R_CONSTANT: sprintf(warn_msg,"var cannot be a number.\n"); capa_msg(MESSAGE_ERROR,warn_msg); break; case S_VAR: case S_CONSTANT: sprintf(fname,"%s",symb_p->s_str); no_error = 1; break; } if( no_error ) { if(Input_idx < (MAX_OPENED_FILE -1) ) { dup_open = 0; /* no need to check duplicated opening a file for(ii=0;ii<Input_idx;ii++) { if(strcmp(Opened_filename[ii],fname)==0) dup_open =1; } */ if( !dup_open ) { Input_idx++; Input_stream[Input_idx]=fopen(fname,"r"); sprintf(Opened_filename[Input_idx], "%s",fname); Current_line[Input_idx] = 0; } else { /* NO warning on duplicated open a file sprintf(warn_msg,"/IMP \"%s\", file has already been imported.\n", fname); capa_msg(MESSAGE_WARN,warn_msg); */ Input_idx++; Input_stream[Input_idx]=fopen(fname,"r"); sprintf(Opened_filename[Input_idx], "%s",fname); Current_line[Input_idx] = 0; } } else { sprintf(warn_msg,"/IMP , too many files has been imported. The maximum is %d files.\n", MAX_OPENED_FILE-1); capa_msg(MESSAGE_WARN,warn_msg); } } } #endif /*AVOIDYYINPUT*/ void append_dynamic_buf(new_str) char *new_str; { int ii,len; if(new_str==NULL) return; len=strlen(new_str); #ifdef LEX_DBUG printf("before: len %d; Dynamic_buf_cur %d; Dynamic_buf_max %d\n", len,Dynamic_buf_cur,Dynamic_buf_max); #endif /* LEX_DBUG */ if (Dynamic_buf_cur+len+1>Dynamic_buf_max) { char *temp_text; Dynamic_buf_max=(Dynamic_buf_cur+len)*2; temp_text=(char*)capa_malloc(sizeof(char),Dynamic_buf_max); strncpy(temp_text,Dynamic_buf,Dynamic_buf_max); free(Dynamic_buf); Dynamic_buf=temp_text; } for(ii=0;ii<len;ii++) { Dynamic_buf[Dynamic_buf_cur+ii]=new_str[ii]; } Dynamic_buf_cur += len; Dynamic_buf[Dynamic_buf_cur+1]='\0'; #ifdef LEX_DBUG printf("after: len %d; Dynamic_buf_cur %d; Dynamic_buf_max %d\n", len,Dynamic_buf_cur,Dynamic_buf_max); printf("Dyn_buf %s; added %s\n",Dynamic_buf,new_str); #endif /* LEX_DBUG */ } char* parser_status() { char *buf,small[SMALL_LINE_BUFFER]; int i,j,totlen=0,len,idx=0; for(i=0;i<=Input_idx;i++) totlen+=strlen(Opened_filename[i])+6; buf=capa_malloc(sizeof(char),totlen); for(i=0;i<=Input_idx;i++) { len=strlen(Opened_filename[i]); for(j=0;j<len;j++) buf[idx++] = Opened_filename[i][j]; buf[idx++] = ':'; sprintf(small,"%d",Current_line[i]); len=strlen(small); for(j=0;j<len;j++) buf[idx++] = small[j]; buf[idx++]=' '; buf[idx]='\0'; } return buf; } void yyfatalerror(char*msg) { char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"Invalid character[\'%s\']\n",yytext); capa_msg(MESSAGE_ERROR,warn_msg); capa_msg(MESSAGE_ERROR,msg); } void yyerror(char* msg) { char warn_msg[WARN_MSG_LENGTH]; sprintf(warn_msg,"%s\n",msg); capa_msg(MESSAGE_ERROR,warn_msg); } void newyy_input (char *buf,int *result,int max_size) { int ii, leng, out_of_char; if (!Lexi_line) { /* was startup */ for(ii=0;ii < MAX_OPENED_FILE;ii++) { Lexi_buf[ii] = NULL; Lexi_pos[ii] = 0; Current_line[ii] = 0; } Input_idx = 0; first_run=0; yyin = Input_stream[Input_idx]; LIDBUG_PR1("<<yy_input() startup>>\n"); } out_of_char = 0; if ( Lexi_buf[Input_idx] == NULL ) { Lexi_buf[Input_idx] = (char *)capa_malloc(sizeof(char)*LEX_BUFLEN+1,1); out_of_char=1; } else { if (!Lexi_buf[Input_idx][Lexi_pos[Input_idx]]) { /* test if the line buffer is empty or at the end */ out_of_char=1; } } if( out_of_char ) { if (fgets(Lexi_buf[Input_idx],LEX_BUFLEN-1,Input_stream[Input_idx])==NULL) { /* read in one line */ LIDBUG_PR2("<<yy_input() fgets() returns NULL, input index=%d>>\n",Input_idx); if( (Input_idx > 0) && ( Lexi_buf[Input_idx][Lexi_pos[Input_idx]] == '\0') ) { LIDBUG_PR2("<<yy_input() close an input stream, input index=%d>>\n",Input_idx); fclose(Input_stream[Input_idx]); capa_mfree((char *)Lexi_buf[Input_idx]); Lexi_buf[Input_idx] = NULL; Input_idx--; yyin = Input_stream[Input_idx]; /* (Lexi_pos[Input_idx])++; */ buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; *result = 1; } else { *result = YY_NULL; /* End of File */ } } else { /* successfully read in one line */ leng = strlen(Lexi_buf[Input_idx]); LIDBUG_PR3("<<yy_input() read into buffer a line(leng=%d), input index=%d>>\n", leng,Input_idx); Lexi_pos[Input_idx] = 0; Lexi_line++; Current_line[Input_idx]++; (Lexi_pos[Input_idx])++; buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; /* need to take care of return continuation conditions */ /* so, we return to one-char-at-a-time approach */ /* for(ii=0;ii<leng;ii++) { */ /* buf[ii] = Lexi_buf[Input_idx][ii]; */ /* } */ /* buf[ii] = '\0'; */ /* printf("YY_INPUT()(Lexi_line=%d,max size=%d)(%c)",Lexi_line,max_size,buf[0]); */ *result = 1; } } else { /* LIDBUG_PR2("<<yy_input() increase Lexi_pos, input index=%d>>\n",Input_idx); */ (Lexi_pos[Input_idx])++; buf[0] = Lexi_buf[Input_idx][Lexi_pos[Input_idx]-1]; *result = 1; } if (Stop_Parser==1) *result = YY_NULL; } int capa_eof() { #ifdef AVOIDYYINPUT if ( --include_stack_ptr < 0 ) yyterminate(); else { yy_delete_buffer( YY_CURRENT_BUFFER ); yy_switch_to_buffer(include_stack[include_stack_ptr]); } #else if(Input_idx == 0) { fclose(Input_stream[Input_idx]); capa_mfree((char *)Lexi_buf[Input_idx]); /*free_problems(LexiProblem_p);*/ LexiProblem_p=NULL; /* printf("\nCAPA EOF\n"); fflush(stdout); */ } end_mode(); return (0); #endif /*AVOIDYYINPUT*/ } /* ------------ */ /* =========================================================== */