added source grammar

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
parent: a3c06fb8f19df6ef612cf2d647d75f8c2bedca8b (diff)
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6 files changed, 217 insertions, 5 deletions
diff --git a/.gitignore b/.gitignore
index 2751756..b7c5f8e 100644
--- a/.gitignore
+++ b/.gitignore
@@ -40,10 +40,12 @@ Makefile.in
 /blogc
 
 # tests
+/tests/check_source_grammar
 /tests/check_template_grammar
 /tests/check_utils
 
 # leg generated source
+/src/source-grammar.c
 /src/template-grammar.c
 
 # tarballs
diff --git a/Makefile.am b/Makefile.am
index 59cbe18..b1548bc 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -14,6 +14,7 @@ AM_DISTCHECK_CONFIGURE_FLAGS = \
 EXTRA_DIST = \
 	autogen.sh \
 	README.md \
+	src/source-grammar.leg \
 	src/template-grammar.leg \
 	$(NULL)
 
@@ -21,6 +22,7 @@ CLEANFILES = \
 	$(NULL)
 
 noinst_HEADERS = \
+	src/source-grammar.h \
 	src/template-grammar.h \
 	src/utils/utils.h \
 	$(NULL)
@@ -41,6 +43,7 @@ check_PROGRAMS = \
 
 
 libblogc_la_SOURCES = \
+	src/source-grammar.c \
 	src/template-grammar.c \
 	src/utils/slist.c \
 	src/utils/strings.c \
@@ -89,10 +92,28 @@ endif
 if USE_CMOCKA
 
 check_PROGRAMS += \
+	tests/check_source_grammar \
 	tests/check_template_grammar \
 	tests/check_utils \
 	$(NULL)
 
+tests_check_source_grammar_SOURCES = \
+	tests/check_source_grammar.c \
+	$(NULL)
+
+tests_check_source_grammar_CFLAGS = \
+	$(CMOCKA_CFLAGS) \
+	$(NULL)
+
+tests_check_source_grammar_LDFLAGS = \
+	-no-install \
+	$(NULL)
+
+tests_check_source_grammar_LDADD = \
+	$(CMOCKA_LIBS) \
+	libblogc.la \
+	$(NULL)
+
 tests_check_template_grammar_SOURCES = \
 	tests/check_template_grammar.c \
 	$(NULL)
diff --git a/src/main.c b/src/main.c
index 65e45ee..3dbf325 100644
--- a/src/main.c
+++ b/src/main.c
@@ -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;
+}
diff --git a/tests/check_source_grammar.c b/tests/check_source_grammar.c
new file mode 100644
index 0000000..a80be8e
--- /dev/null
+++ b/tests/check_source_grammar.c
@@ -0,0 +1,49 @@
+/*
+ * blogc: A blog 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.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif /* HAVE_CONFIG_H */
+
+#include <stdarg.h>
+#include <stddef.h>
+#include <setjmp.h>
+#include <cmocka.h>
+#include "../src/source-grammar.h"
+
+
+static void
+test_source_parse(void **state)
+{
+    blogc_source_t *source = blogc_source_parse(
+        "VAR1: asd asd\n"
+        "VAR2: 123chunda\n"
+        "----------\n"
+        "# This is a test\n"
+        "\n"
+        "bola\n");
+    assert_non_null(source);
+    assert_int_equal(b_trie_size(source->config), 2);
+    assert_string_equal(b_trie_lookup(source->config, "VAR1"), "asd asd");
+    assert_string_equal(b_trie_lookup(source->config, "VAR2"), "123chunda");
+    assert_string_equal(source->content,
+        "# This is a test\n"
+        "\n"
+        "bola\n");
+    blogc_source_free(source);
+}
+
+
+int
+main(void)
+{
+    const UnitTest tests[] = {
+        unit_test(test_source_parse),
+    };
+    return run_tests(tests);
+}
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
parent	a3c06fb8f19df6ef612cf2d647d75f8c2bedca8b (diff)
download	blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.tar.gz blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.tar.bz2 blogc-63602a4fcf3e811e529ed5b7ba670764d29fc96b.zip