+++ /dev/null
-/* $Id$ */
-
-/* DataDesc/ddt_parse -- automatic parsing of data structures */
-
-/* Authors: Arnaud Legrand, Martin Quinson */
-/* Copyright (C) 2003, 2004 Martin Quinson. */
-
-/* This program is free software; you can redistribute it and/or modify it
- under the terms of the license (GNU LGPL) which comes with this package. */
-
-%option noyywrap
-%{
-#include"DataDesc/datadesc_private.h"
-#include"DataDesc/ddt_parse.yy.h"
-#include <string.h>
- YY_BUFFER_STATE input_buffer;
- FILE *file_to_parse;
-
- int gras_ddt_parse_line_pos = 1;
- int gras_ddt_parse_col_pos = 0;
- int gras_ddt_parse_char_pos = 0;
- int gras_ddt_parse_tok_num = 0;
- GRAS_LOG_NEW_DEFAULT_SUBCATEGORY(lexer,parse);
-#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)
-%}
-
-%x comment foo str
-space [ \t]
-letter [A-Za-z._-]
-digit [0-9]
-
-%%
- int comment_caller=0;
-
- char string_buf[GRAS_DDT_PARSE_MAX_STR_CONST];
- char *string_buf_ptr = NULL;
-
-"//"[^\n]*
-"/*" {
- comment_caller = INITIAL;
- BEGIN(comment);
- }
-
-<foo>"/*" {
- comment_caller = foo;
- BEGIN(comment);
- }
-
-<comment>[^*\n]* /* eat anything that's not a '*' */
-<comment>"*"+[^*/\n]* /* eat up '*'s not followed by '/'s */
-<comment>\n {
- ++gras_ddt_parse_line_pos;
- gras_ddt_parse_col_pos=0;
- gras_ddt_parse_char_pos++;
-}
-<comment>"*"+"/" BEGIN(comment_caller);
-
-\" string_buf_ptr = string_buf; gras_ddt_parse_char_pos++;gras_ddt_parse_col_pos++; BEGIN(str);
-
-<str>\" { /* saw closing quote - all done */
- BEGIN(INITIAL);
- *string_buf_ptr = '\0';
- yytext=string_buf;
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- return GRAS_DDT_PARSE_TOKEN_WORD;
- /* return string constant token type and
- * value to parser
- */
- }
-
-<str>\n {
- /* error - unterminated string constant */
- /* generate error message */
- }
-
-<str>\\[0-7]{1,3} {
- /* octal escape sequence */
- int result;
-
- (void) sscanf( yytext + 1, "%o", &result );
-
- if ( result > 0xff )
- /* error, constant is out-of-bounds */
-
- *string_buf_ptr++ = result;
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- }
-
-<str>\\[0-9]+ {
- /* generate error - bad escape sequence; something
- * like '\48' or '\0777777'
- */
- }
-
-<str>\\n {
- *string_buf_ptr++ = '\n';
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-<str>\\t {
- *string_buf_ptr++ = '\t';
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-<str>\\r {
- *string_buf_ptr++ = '\r';
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-<str>\\b {
- *string_buf_ptr++ = '\b';
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-<str>\\f {
- *string_buf_ptr++ = '\f';
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-
-<str>\\(.|\n) {
- *string_buf_ptr++ = yytext[1];
- if(yytext[1]=='\n') {
- ++gras_ddt_parse_line_pos;
- gras_ddt_parse_col_pos=0;
- } else {
- gras_ddt_parse_col_pos++;
- }
- gras_ddt_parse_char_pos++;
-}
-
-<str>[^\\\n\"]+ {
- char *yptr = yytext;
-
- while ( *yptr )
- *string_buf_ptr++ = *yptr++;
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
-}
-
-({letter}|{digit})* {
- gras_ddt_parse_char_pos+= strlen(yytext);
- gras_ddt_parse_col_pos+= strlen(yytext);
- return(GRAS_DDT_PARSE_TOKEN_WORD);
-}
-"{" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_LP);
-}
-"}" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_RP);
-}
-"[" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_LB);
-}
-"]" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_RB);
-}
-"*" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_STAR);
-}
-";" {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_SEMI_COLON);
-}
-"," {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
- return(GRAS_DDT_PARSE_TOKEN_COLON);
-}
-"\n" {
- gras_ddt_parse_line_pos++;
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos=0;
- SHOW_WHERE;
-}
-. {
- gras_ddt_parse_char_pos++;
- gras_ddt_parse_col_pos++;
- SHOW_WHERE;
-}
-%%
-/* {space}+ { return(TOKEN_SPACE);} */
-
-void gras_ddt_parse_dump(void) {
- switch(gras_ddt_parse_tok_num) {
- case GRAS_DDT_PARSE_TOKEN_LP : {printf("TOKEN_LP ");break;}
- case GRAS_DDT_PARSE_TOKEN_RP : {printf("TOKEN_RP ");break;}
- case GRAS_DDT_PARSE_TOKEN_WORD : {printf("TOKEN_WORD ");break;}
- // case GRAS_DDT_PARSE_TOKEN_SPACE : {printf("TOKEN_SPACE ");break;}
- // case GRAS_DDT_PARSE_TOKEN_COMMENT : {printf("TOKEN_COMMENT ");break;}
- case GRAS_DDT_PARSE_TOKEN_NEWLINE : {printf("TOKEN_NEWLINE\n");return;}
- case GRAS_DDT_PARSE_TOKEN_EMPTY : {printf("TOKEN_EMPTY\n");return;}
- default : {printf("Unknown token %d\n", gras_ddt_parse_tok_num);return;}
- }
- printf("-->%s<-- [line %d, pos %d]\n",yytext,gras_ddt_parse_line_pos,gras_ddt_parse_char_pos);
- return;
-}
-
-int gras_ddt_parse_lex_n_dump(void) {
- gras_ddt_parse_tok_num = gras_ddt_parse_lex();
- // gras_ddt_parse_char_pos += strlen(yytext);
- return(gras_ddt_parse_tok_num);
-}
-
-void gras_ddt_parse_pointer_init(const char *file) {
- file_to_parse = fopen(file,"r");
- input_buffer = yy_create_buffer( file_to_parse, 10 );
- yy_switch_to_buffer(input_buffer);
-
- gras_ddt_parse_line_pos = 1;
- gras_ddt_parse_char_pos = 0;
- gras_ddt_parse_col_pos = 0;
- gras_ddt_parse_tok_num = 0;
-}
-
-void gras_ddt_parse_pointer_close(void) {
- yy_delete_buffer(input_buffer);
- fclose(file_to_parse);
-
- gras_ddt_parse_line_pos = 1;
- gras_ddt_parse_char_pos = 0;
- gras_ddt_parse_tok_num = 0;
-}
-
-
-void gras_ddt_parse_pointer_string_init(const char *string_to_parse) {
- input_buffer = yy_scan_string (string_to_parse);
- yy_switch_to_buffer(input_buffer);
-
- gras_ddt_parse_line_pos = 1;
- gras_ddt_parse_char_pos = 0;
- gras_ddt_parse_tok_num = 0;
-}
-
-void gras_ddt_parse_pointer_string_close(void) {
- yy_delete_buffer(input_buffer);
-
- gras_ddt_parse_line_pos = 1;
- gras_ddt_parse_char_pos = 0;
- gras_ddt_parse_tok_num = 0;
-}
-
-// Local variables:
-// mode: c
-// End:
