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move slug related functions to slug.c and slug.h

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This commit is contained in:
c9s 2014-06-02 04:52:41 +08:00
parent 2a75861741
commit 6dfd37d43d
7 changed files with 177 additions and 127 deletions
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38
include/r3.h
View file

@ -180,44 +180,6 @@ enum { NODE_COMPARE_STR, NODE_COMPARE_PCRE, NODE_COMPARE_OPCODE };
enum { OP_EXPECT_MORE_DIGITS = 1, OP_EXPECT_MORE_WORDS, OP_EXPECT_NOSLASH, OP_EXPECT_NODASH, OP_EXPECT_MORE_ALPHA };
typedef struct {
/**
* source path
*/
char * path;
int path_len;
/**
* slug start pointer
*/
char * begin;
/**
* slug end pointer
*/
char * end;
/**
* slug length
*/
int len;
// slug pattern pointer if we have one
char * pattern;
// the length of custom pattern, if the pattern is found.
int pattern_len;
} r3_slug_t;
r3_slug_t * r3_slug_parse(const char *needle, int needle_len, char **errstr);
char * r3_slug_to_str(r3_slug_t *s);
void r3_slug_free(r3_slug_t * s);
#ifdef ENABLE_JSON
json_object * r3_edge_to_json_object(const edge * e);
json_object * r3_node_to_json_object(const node * n);

2
src/Makefile.am
View file

@ -3,7 +3,7 @@ AM_LDFLAGS=$(DEPS_LIBS) $(GVC_DEPS_LIBS) $(JSONC_LIBS)
noinst_LTLIBRARIES = libr3core.la
# lib_LIBRARIES = libr3.a
libr3core_la_SOURCES = node.c edge.c str.c token.c match_entry.c
libr3core_la_SOURCES = node.c edge.c str.c token.c match_entry.c slug.c
if ENABLE_JSON
libr3core_la_SOURCES += json.c

119
src/slug.c Normal file
View file

@ -0,0 +1,119 @@
/*
* slug.c
* Copyright (C) 2014 c9s <c9s@c9smba.local>
*
* Distributed under terms of the MIT license.
*/
#include <stdlib.h>
#include <string.h>
#include "config.h"
#include "r3.h"
#include "r3_str.h"
#include "slug.h"
#include "zmalloc.h"
r3_slug_t * r3_slug_new(char * path, int path_len) {
r3_slug_t * s = zmalloc(sizeof(r3_slug_t));
s->path = path;
s->path_len = path_len;
s->begin = NULL;
s->end = NULL;
s->len = 0;
s->pattern = NULL;
s->pattern_len = 0;
return s;
}
void r3_slug_free(r3_slug_t * s) {
zfree(s);
}
/**
* Return 1 means OK
* Return 0 means Empty
* Return -1 means Error
*/
int r3_slug_check(r3_slug_t *s, char **errstr) {
// if it's empty
if (s->begin == NULL && s->len == 0) {
return 0;
}
if (s->begin && s->begin == s->end && s->len == 0) {
return 0;
}
// if the head is defined, we should also have end pointer
if (s->begin && s->end == NULL) {
return -1;
}
return 0;
}
char * r3_slug_to_str(r3_slug_t *s) {
char *str = NULL;
asprintf(&str, "slug: '%.*s', pattern: '%.*s', path: '%.*s'", s->len, s->begin, s->pattern_len, s->pattern, s->path_len, s->path);
return str;
}
/*
r3_slug_t * r3_slug_parse_next(r3_slug_t *s, char **errstr) {
return r3_slug_parse(s->end, s->path_len - (s->end - s->begin), errstr);
}
*/
r3_slug_t * r3_slug_parse(const char *needle, int needle_len, char *offset, char **errstr) {
r3_slug_t * s = r3_slug_new(needle, needle_len);
int cnt = 0;
int state = 0;
char * p = offset;
while( (p-needle) < needle_len) {
if (*p == '\\' ) {
p++; p++;
}
if (state == 0 && *p == '{') {
s->begin = p+1;
}
if (state == 1 && *p == ':') {
// start from next
s->pattern = p+1;
}
// closing slug
if (state == 1 && *p == '}') {
s->end = p;
s->len = s->end - s->begin;
if (s->pattern) {
s->pattern_len = p - s->pattern;
}
cnt++;
state--;
break;
}
if ( *p == '{' ) {
state++;
} else if ( *p == '}' ) {
state--;
}
p++;
};
if (state > 0) {
if (errstr) {
asprintf(errstr, "incomplete slug pattern. PATH (%d): '%s', OFFSET: %ld, STATE: %d", needle_len, needle, p - needle, state);
}
return NULL;
}
return s;
}

52
src/slug.h Normal file
View file

@ -0,0 +1,52 @@
/*
* slug.h
* Copyright (C) 2014 c9s <c9s@c9smba.local>
*
* Distributed under terms of the MIT license.
*/
#ifndef R3_SLUG_H
#define R3_SLUG_H
typedef struct {
/**
* source path
*/
char * path;
int path_len;
/**
* slug start pointer
*/
char * begin;
/**
* slug end pointer
*/
char * end;
/**
* slug length
*/
int len;
// slug pattern pointer if we have one
char * pattern;
// the length of custom pattern, if the pattern is found.
int pattern_len;
} r3_slug_t;
r3_slug_t * r3_slug_new(char * path, int path_len);
int r3_slug_check(r3_slug_t *s, char **errstr);
r3_slug_t * r3_slug_parse(const char *needle, int needle_len, char *offset, char **errstr);
char * r3_slug_to_str(r3_slug_t *s);
void r3_slug_free(r3_slug_t * s);
#endif /* !SLUG_H */

84
src/str.c
View file

@ -38,90 +38,6 @@ int r3_pattern_to_opcode(const char * pattern, int len) {
}
r3_slug_t * r3_slug_new(char * path, int path_len) {
r3_slug_t * s = zmalloc(sizeof(r3_slug_t));
s->path = path;
s->path_len = path_len;
s->begin = NULL;
s->end = NULL;
s->len = 0;
s->pattern = NULL;
s->pattern_len = 0;
return s;
}
void r3_slug_free(r3_slug_t * s) {
zfree(s);
}
int r3_slug_check(r3_slug_t *s, char **errstr) {
if (s->begin == NULL) {
return 1;
}
if (s->end == NULL) {
return 1;
}
return 0;
}
char * r3_slug_to_str(r3_slug_t *s) {
char *str = NULL;
asprintf(&str, "slug: '%.*s', pattern: '%.*s', path: '%.*s'", s->len, s->begin, s->pattern_len, s->pattern, s->path_len, s->path);
return str;
}
/*
r3_slug_t * r3_slug_parse_next(r3_slug_t *s) {
r3_slug_parse(s->end, s->path_len - (s->end - s->begin), s->end;
}
*/
r3_slug_t * r3_slug_parse(const char *needle, int needle_len, char **errstr) {
r3_slug_t * s = r3_slug_new(needle, needle_len);
int cnt = 0;
int state = 0;
char * p = (char*) needle;
while( (p-needle) < needle_len) {
if (*p == '\\' ) {
p++; p++;
}
if (state == 0 && *p == '{') {
s->begin = p+1;
}
if (state == 1 && *p == ':') {
// start from next
s->pattern = p+1;
}
// closing slug
if (state == 1 && *p == '}') {
s->end = p;
s->len = s->end - s->begin;
if (s->pattern) {
s->pattern_len = p - s->pattern;
}
cnt++;
break;
}
if ( *p == '{' ) {
state++;
} else if ( *p == '}' ) {
state--;
}
p++;
};
return s;
}
/**
* provide a quick way to count slugs, simply search for '{'

4
tests/Makefile.am
View file

@ -6,8 +6,8 @@
# endif
TESTS =
AM_CFLAGS=$(DEPS_CFLAGS) $(GVC_DEPS_CFLAGS) $(JSONC_CFLAGS) -I$(top_builddir) -I$(top_builddir)/include -I$(top_builddir)/3rdparty -Wall -std=c99 -ggdb -Wall
AM_LDFLAGS=$(DEPS_LIBS) $(GVC_DEPS_LIBS) $(JSONC_LIBS) -L$(top_builddir) -lr3 -lcheck @CHECK_LIBS@
AM_CFLAGS=$(DEPS_CFLAGS) $(GVC_DEPS_CFLAGS) $(JSONC_CFLAGS) -I$(top_builddir) -I$(top_builddir)/include -I$(top_builddir)/src -I$(top_builddir)/3rdparty -Wall -std=c99 -ggdb -Wall
AM_LDFLAGS=$(DEPS_LIBS) $(GVC_DEPS_LIBS) $(JSONC_LIBS) -L$(top_builddir) -lcheck @CHECK_LIBS@ $(top_builddir)/libr3.la
if USE_JEMALLOC
AM_CFLAGS += -ljemalloc

5
tests/check_slug.c
View file

@ -11,6 +11,7 @@
#include "r3.h"
#include "r3_str.h"
#include "zmalloc.h"
#include "slug.h"
START_TEST (test_pattern_to_opcode)
{
@ -99,7 +100,7 @@ START_TEST (test_slug_parse_with_pattern)
{
char * pattern = "/user/{name:\\d{3}}";
char * errstr = NULL;
r3_slug_t *s = r3_slug_parse(pattern, strlen(pattern), &errstr);
r3_slug_t *s = r3_slug_parse(pattern, strlen(pattern), pattern, &errstr);
char * out = r3_slug_to_str(s);
printf("%s\n",out);
@ -114,7 +115,7 @@ START_TEST (test_slug_parse_without_pattern)
{
char * pattern = "/user/{name}";
char * errstr = NULL;
r3_slug_t *s = r3_slug_parse(pattern, strlen(pattern), &errstr);
r3_slug_t *s = r3_slug_parse(pattern, strlen(pattern), pattern, &errstr);
char * out = r3_slug_to_str(s);
printf("%s\n",out);