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#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#ifdef BENCHMARK_CHELP
#include <sys/time.h>
#endif
#include "chelper.h"
int NewOnigRegex( char *pattern, int pattern_length, int option,
OnigRegex *regex, OnigEncoding *encoding, OnigErrorInfo **error_info, char **error_buffer) {
int ret = ONIG_NORMAL;
int error_msg_len = 0;
OnigUChar *pattern_start = (OnigUChar *) pattern;
OnigUChar *pattern_end = (OnigUChar *) (pattern + pattern_length);
*error_info = (OnigErrorInfo *) malloc(sizeof(OnigErrorInfo));
memset(*error_info, 0, sizeof(OnigErrorInfo));
onig_initialize_encoding(*encoding);
*error_buffer = (char*) malloc(ONIG_MAX_ERROR_MESSAGE_LEN * sizeof(char));
memset(*error_buffer, 0, ONIG_MAX_ERROR_MESSAGE_LEN * sizeof(char));
ret = onig_new(regex, pattern_start, pattern_end, (OnigOptionType)(option), *encoding, OnigDefaultSyntax, *error_info);
if (ret != ONIG_NORMAL) {
error_msg_len = onig_error_code_to_str((unsigned char*)(*error_buffer), ret, *error_info);
if (error_msg_len >= ONIG_MAX_ERROR_MESSAGE_LEN) {
error_msg_len = ONIG_MAX_ERROR_MESSAGE_LEN - 1;
}
(*error_buffer)[error_msg_len] = '\0';
}
return ret;
}
int SearchOnigRegex( void *str, int str_length, int offset, int option,
OnigRegex regex, OnigErrorInfo *error_info, char *error_buffer, int *captures, int *numCaptures) {
int ret = ONIG_MISMATCH;
int error_msg_len = 0;
OnigRegion *region;
#ifdef BENCHMARK_CHELP
struct timeval tim1, tim2;
long t;
#endif
OnigUChar *str_start = (OnigUChar *) str;
OnigUChar *str_end = (OnigUChar *) (str_start + str_length);
OnigUChar *search_start = (OnigUChar *)(str_start + offset);
OnigUChar *search_end = str_end;
#ifdef BENCHMARK_CHELP
gettimeofday(&tim1, NULL);
#endif
region = onig_region_new();
ret = onig_search(regex, str_start, str_end, search_start, search_end, region, option);
if (ret < 0 && error_buffer != NULL) {
error_msg_len = onig_error_code_to_str((unsigned char*)(error_buffer), ret, error_info);
if (error_msg_len >= ONIG_MAX_ERROR_MESSAGE_LEN) {
error_msg_len = ONIG_MAX_ERROR_MESSAGE_LEN - 1;
}
error_buffer[error_msg_len] = '\0';
}
else if (captures != NULL) {
int i;
int count = 0;
for (i = 0; i < region->num_regs; i++) {
captures[2*count] = region->beg[i];
captures[2*count+1] = region->end[i];
count ++;
}
*numCaptures = count;
}
onig_region_free(region, 1);
#ifdef BENCHMARK_CHELP
gettimeofday(&tim2, NULL);
t = (tim2.tv_sec - tim1.tv_sec) * 1000000 + tim2.tv_usec - tim1.tv_usec;
printf("%ld microseconds elapsed\n", t);
#endif
return ret;
}
int MatchOnigRegex(void *str, int str_length, int offset, int option,
OnigRegex regex) {
int ret = ONIG_MISMATCH;
int error_msg_len = 0;
OnigRegion *region;
#ifdef BENCHMARK_CHELP
struct timeval tim1, tim2;
long t;
#endif
OnigUChar *str_start = (OnigUChar *) str;
OnigUChar *str_end = (OnigUChar *) (str_start + str_length);
OnigUChar *search_start = (OnigUChar *)(str_start + offset);
#ifdef BENCHMARK_CHELP
gettimeofday(&tim1, NULL);
#endif
region = onig_region_new();
ret = onig_match(regex, str_start, str_end, search_start, region, option);
onig_region_free(region, 1);
#ifdef BENCHMARK_CHELP
gettimeofday(&tim2, NULL);
t = (tim2.tv_sec - tim1.tv_sec) * 1000000 + tim2.tv_usec - tim1.tv_usec;
printf("%ld microseconds elapsed\n", t);
#endif
return ret;
}
int LookupOnigCaptureByName(char *name, int name_length,
OnigRegex regex) {
int ret = ONIGERR_UNDEFINED_NAME_REFERENCE;
OnigRegion *region;
#ifdef BENCHMARK_CHELP
struct timeval tim1, tim2;
long t;
#endif
OnigUChar *name_start = (OnigUChar *) name;
OnigUChar *name_end = (OnigUChar *) (name_start + name_length);
#ifdef BENCHMARK_CHELP
gettimeofday(&tim1, NULL);
#endif
region = onig_region_new();
ret = onig_name_to_backref_number(regex, name_start, name_end, region);
onig_region_free(region, 1);
#ifdef BENCHMARK_CHELP
gettimeofday(&tim2, NULL);
t = (tim2.tv_sec - tim1.tv_sec) * 1000000 + tim2.tv_usec - tim1.tv_usec;
printf("%ld microseconds elapsed\n", t);
#endif
return ret;
}
typedef struct {
char *nameBuffer;
int bufferOffset;
int bufferSize;
int *numbers;
int numIndex;
} group_info_t;
int name_callback(const UChar* name, const UChar* name_end,
int ngroup_num, int* group_nums,
regex_t* reg, void* arg)
{
int nameLen, offset, newOffset;
group_info_t *groupInfo;
groupInfo = (group_info_t*) arg;
offset = groupInfo->bufferOffset;
nameLen = name_end - name;
newOffset = offset + nameLen;
//if there are already names, add a ";"
if (offset > 0) {
newOffset += 1;
}
if (newOffset <= groupInfo->bufferSize) {
if (offset > 0) {
groupInfo->nameBuffer[offset] = ';';
offset += 1;
}
memcpy(&groupInfo->nameBuffer[offset], name, nameLen);
}
groupInfo->bufferOffset = newOffset;
if (ngroup_num > 0) {
groupInfo->numbers[groupInfo->numIndex] = group_nums[ngroup_num-1];
} else {
groupInfo->numbers[groupInfo->numIndex] = -1;
}
groupInfo->numIndex += 1;
return 0; /* 0: continue */
}
int GetCaptureNames(OnigRegex reg, void *buffer, int bufferSize, int* groupNumbers) {
int ret;
group_info_t groupInfo;
groupInfo.nameBuffer = (char*)buffer;
groupInfo.bufferOffset = 0;
groupInfo.bufferSize = bufferSize;
groupInfo.numbers = groupNumbers;
groupInfo.numIndex = 0;
onig_foreach_name(reg, name_callback, (void* )&groupInfo);
return groupInfo.bufferOffset;
}
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