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| author | Rafael G. Martins <rafael@rafaelmartins.eng.br> | 2015-04-15 23:41:42 -0300 |
|---|---|---|
| committer | Rafael G. Martins <rafael@rafaelmartins.eng.br> | 2015-04-15 23:57:18 -0300 |
| commit | 63602a4fcf3e811e529ed5b7ba670764d29fc96b (patch) | |
| tree | 08d38e640ac2698edbe840d0fb1db40368012717 /src | |
| parent | a3c06fb8f19df6ef612cf2d647d75f8c2bedca8b (diff) | |
| download | blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.tar.gz blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.tar.bz2 blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.zip | |
added source grammar
Diffstat (limited to 'src')
| -rw-r--r-- | src/main.c | 12 | ||||
| -rw-r--r-- | src/source-grammar.h | 22 | ||||
| -rw-r--r-- | src/source-grammar.leg | 116 |
3 files changed, 145 insertions, 5 deletions
@@ -12,16 +12,18 @@ #include <stdio.h> -#include "template-grammar.h" +#include "source-grammar.h" int main(int argc, char **argv) { - b_slist_t *t = blogc_template_parse( - "<html>{{ BOLA }}</html>\n" - "{% block single_source %}\n"); - printf("%s\n", (char*) ((blogc_template_stmt_t*)t->next->next->next->data)->value); + blogc_source_t *t = blogc_source_parse( + "\n \nBOLA: guda\n\t\n\n\n\n" + "CHUNDA: asd\n" + "----\n" + "{% block single_source %}\nbola\n\nzas\n"); + printf("%s\n", t->content); printf("Hello, World!\n"); return 0; } diff --git a/src/source-grammar.h b/src/source-grammar.h new file mode 100644 index 0000000..540c21b --- /dev/null +++ b/src/source-grammar.h @@ -0,0 +1,22 @@ +/* + * blogc: A blog compiler. + * Copyright (C) 2015 Rafael G. Martins <rafael@rafaelmartins.eng.br> + * + * This program can be distributed under the terms of the LGPL-2 License. + * See the file COPYING. + */ + +#ifndef _SOURCE_GRAMAR_H +#define _SOURCE_GRAMAR_H + +#include "utils/utils.h" + +typedef struct { + b_trie_t *config; + char *content; +} blogc_source_t; + +blogc_source_t* blogc_source_parse(const char *tmpl); +void blogc_source_free(blogc_source_t *source); + +#endif /* _SOURCE_GRAMAR_H */ diff --git a/src/source-grammar.leg b/src/source-grammar.leg new file mode 100644 index 0000000..faab9a4 --- /dev/null +++ b/src/source-grammar.leg @@ -0,0 +1,116 @@ +# +# blogc: A balde compiler. +# Copyright (C) 2015 Rafael G. Martins <rafael@rafaelmartins.eng.br> +# +# This program can be distributed under the terms of the BSD License. +# See the file COPYING. +# + +%{ + +#include <stdio.h> +#include "utils/utils.h" +#include "source-grammar.h" + +#define YY_INPUT(buf, result, max_size) \ +{ \ + int yyc = (charbuf && *charbuf != '\0') ? *charbuf++ : EOF; \ + result = (EOF == yyc) ? 0 : (*buf = yyc, 1); \ +} + + +static b_trie_t *config = NULL; +static const char *charbuf = NULL; +static char *key = NULL; +static char *content = NULL; + + +static void +blogc_source_config_key(const char *value) +{ + if (key != NULL) { + fprintf(stderr, "Syntax error: configuration key already set: %s\n", key); + exit(1); + } + key = b_strdup(value); +} + + +static void +blogc_source_config_value(const char *value) +{ + if (key == NULL) { + fprintf(stderr, "Syntax error: configuration value without a key: %s\n", value); + exit(1); + } + b_trie_insert(config, key, b_str_strip(b_strdup(value))); + free(key); + key = NULL; +} + + +static void +blogc_source_content(const char *value) +{ + if (content != NULL) { + fprintf(stderr, "Syntax error: content set twice\n"); + exit(1); + } + content = b_strdup(value); +} + +%} + +page = ( ( - eol )* ( config ( - eol )* )+ '----' '-'* eol content eof ) | anything + { fprintf(stderr, "Syntax error near: %s\n", yytext); exit(1); } + +# Useful rules +eol = '\n' | '\r\n' | '\r' +eof = !. +- = [\t ]* +id = [A-Z][A-Z0-9_]* +anything = < ( !eol . )* > eol + +# Configuration +config_key = < id > { blogc_source_config_key(yytext); } +config_value = < anything > { blogc_source_config_value(yytext); } +config = config_key ':' ' '+ config_value + +# Generic content +content = < ( !eof . )+ > { blogc_source_content(yytext); } + +%% + + +void +blogc_source_free(blogc_source_t *source) +{ + if (source == NULL) + return; + free(source->content); + b_trie_free(source->config); + free(source); +} + + +static void +blogc_source_config_free(void *ptr) +{ + free(ptr); +} + + +blogc_source_t* +blogc_source_parse(const char *tmpl) +{ + charbuf = tmpl; + config = b_trie_new(blogc_source_config_free); + key = NULL; + content = NULL; + while(yyparse()); + blogc_source_t *rv = malloc(sizeof(blogc_source_t)); + rv->content = content; + rv->config = config; + charbuf = NULL; + return rv; +} |