3 /* DataDesc/ddt_parse -- automatic parsing of data structures */
5 /* Authors: Arnaud Legrand, Martin Quinson */
6 /* Copyright (C) 2003, 2004 Martin Quinson. */
8 /* This program is free software; you can redistribute it and/or modify it
9 under the terms of the license (GNU LGPL) which comes with this package. */
13 #include"DataDesc/datadesc_private.h"
14 #include"DataDesc/ddt_parse.yy.h"
16 YY_BUFFER_STATE input_buffer;
19 int gras_ddt_parse_line_pos = 1;
20 int gras_ddt_parse_col_pos = 0;
21 int gras_ddt_parse_char_pos = 0;
22 int gras_ddt_parse_tok_num = 0;
23 const char *definition;
24 GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(lexer,ddt_parse);
25 #define SHOW_WHERE DEBUG4("%d:%d (char #%d): seen '%s'", gras_ddt_parse_line_pos,gras_ddt_parse_col_pos,gras_ddt_parse_char_pos,yytext)
28 %x annotate comment foo
35 int annotate_caller=0;
37 char string_buf[GRAS_DDT_PARSE_MAX_STR_CONST];
38 char *string_buf_ptr = NULL;
42 "/*g"{space}* { /****************** ANNOTATION ************************/
43 DEBUG0("Begin annotation");
44 annotate_caller = INITIAL;
45 gras_ddt_parse_char_pos+= strlen(yytext);
46 gras_ddt_parse_col_pos+= strlen(yytext);
49 <foo>"/*g"{space}* { /* trim annotation */
50 DEBUG0("Begin annotation");
51 annotate_caller = foo;
52 gras_ddt_parse_char_pos+= strlen(yytext);
53 gras_ddt_parse_col_pos+= strlen(yytext);
57 <annotate>{space}*"g*/" {
58 DEBUG0("End annotation");
59 gras_ddt_parse_char_pos+= strlen(yytext);
60 gras_ddt_parse_col_pos+= strlen(yytext);
61 BEGIN(annotate_caller);
65 PARSE_ERROR0("``/*g'' construct closed by a regular ``*/''");
68 PARSE_ERROR0("Type annotation cannot spread over several lines");
71 <annotate>.* { /* eat the rest */
72 gras_ddt_parse_char_pos+= strlen(yytext);
73 gras_ddt_parse_col_pos+= strlen(yytext);
74 return GRAS_DDT_PARSE_TOKEN_ANNOTATE;
77 "/*[^g]" { /****************** COMMENTS ************************/
78 // constructs like /*g [string] g*/ are not comments but size annotations
79 comment_caller = INITIAL;
88 <comment>[^*\n]* { /* eat anything that's not a '*' */
90 <comment>"*"+[^*/\n]* { /* eat up '*'s not followed by '/'s */
93 ++gras_ddt_parse_line_pos;
94 gras_ddt_parse_col_pos=0;
95 gras_ddt_parse_char_pos++;
98 gras_ddt_parse_char_pos+= strlen(yytext);
99 gras_ddt_parse_col_pos+= strlen(yytext);
100 BEGIN(comment_caller);
103 ({letter}|{digit})* { /****************** STATEMENTS ************************/
104 gras_ddt_parse_char_pos += strlen(yytext);
105 gras_ddt_parse_col_pos += strlen(yytext);
107 return(GRAS_DDT_PARSE_TOKEN_WORD);
110 gras_ddt_parse_char_pos++;
111 gras_ddt_parse_col_pos++;
113 return(GRAS_DDT_PARSE_TOKEN_LA);
116 gras_ddt_parse_char_pos++;
117 gras_ddt_parse_col_pos++;
119 return(GRAS_DDT_PARSE_TOKEN_RA);
122 gras_ddt_parse_char_pos++;
123 gras_ddt_parse_col_pos++;
125 return(GRAS_DDT_PARSE_TOKEN_LB);
128 gras_ddt_parse_char_pos++;
129 gras_ddt_parse_col_pos++;
131 return(GRAS_DDT_PARSE_TOKEN_RB);
134 gras_ddt_parse_char_pos++;
135 gras_ddt_parse_col_pos++;
137 return(GRAS_DDT_PARSE_TOKEN_LP);
140 gras_ddt_parse_char_pos++;
141 gras_ddt_parse_col_pos++;
143 return(GRAS_DDT_PARSE_TOKEN_RP);
146 gras_ddt_parse_char_pos++;
147 gras_ddt_parse_col_pos++;
149 return(GRAS_DDT_PARSE_TOKEN_STAR);
152 gras_ddt_parse_char_pos++;
153 gras_ddt_parse_col_pos++;
155 return(GRAS_DDT_PARSE_TOKEN_SEMI_COLON);
158 gras_ddt_parse_char_pos++;
159 gras_ddt_parse_col_pos++;
161 return(GRAS_DDT_PARSE_TOKEN_COLON);
164 gras_ddt_parse_line_pos++;
165 gras_ddt_parse_char_pos++;
166 gras_ddt_parse_col_pos=0;
170 gras_ddt_parse_char_pos++;
171 gras_ddt_parse_col_pos++;
175 /* {space}+ { return(TOKEN_SPACE);} */
177 void gras_ddt_parse_dump(void) {
178 switch(gras_ddt_parse_tok_num) {
179 case GRAS_DDT_PARSE_TOKEN_LA : {printf("TOKEN_LA ");break;}
180 case GRAS_DDT_PARSE_TOKEN_RA : {printf("TOKEN_RA ");break;}
181 case GRAS_DDT_PARSE_TOKEN_WORD : {printf("TOKEN_WORD ");break;}
182 // case GRAS_DDT_PARSE_TOKEN_SPACE : {printf("TOKEN_SPACE ");break;}
183 // case GRAS_DDT_PARSE_TOKEN_COMMENT : {printf("TOKEN_COMMENT ");break;}
184 case GRAS_DDT_PARSE_TOKEN_NEWLINE : {printf("TOKEN_NEWLINE\n");return;}
185 case GRAS_DDT_PARSE_TOKEN_EMPTY : {printf("TOKEN_EMPTY\n");return;}
186 default : {printf("Unknown token %d\n", gras_ddt_parse_tok_num);return;}
188 printf("-->%s<-- [line %d, pos %d]\n",yytext,gras_ddt_parse_line_pos,gras_ddt_parse_char_pos);
192 int gras_ddt_parse_lex_n_dump(void) {
193 gras_ddt_parse_tok_num = gras_ddt_parse_lex();
194 // gras_ddt_parse_char_pos += strlen(yytext);
195 return(gras_ddt_parse_tok_num);
198 void gras_ddt_parse_pointer_init(const char *file) {
199 file_to_parse = fopen(file,"r");
200 input_buffer = yy_create_buffer( file_to_parse, 10 );
201 yy_switch_to_buffer(input_buffer);
203 gras_ddt_parse_line_pos = 1;
204 gras_ddt_parse_char_pos = 0;
205 gras_ddt_parse_col_pos = 0;
206 gras_ddt_parse_tok_num = 0;
209 void gras_ddt_parse_pointer_close(void) {
210 yy_delete_buffer(input_buffer);
211 fclose(file_to_parse);
213 gras_ddt_parse_line_pos = 1;
214 gras_ddt_parse_char_pos = 0;
215 gras_ddt_parse_tok_num = 0;
219 void gras_ddt_parse_pointer_string_init(const char *string_to_parse) {
220 input_buffer = yy_scan_string (string_to_parse);
221 definition = string_to_parse;
222 yy_switch_to_buffer(input_buffer);
224 gras_ddt_parse_line_pos = 1;
225 gras_ddt_parse_char_pos = 0;
226 gras_ddt_parse_tok_num = 0;
229 void gras_ddt_parse_pointer_string_close(void) {
230 yy_delete_buffer(input_buffer);
232 gras_ddt_parse_line_pos = 1;
233 gras_ddt_parse_char_pos = 0;
234 gras_ddt_parse_tok_num = 0;