FGCOM/jansson
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Unify naming in parser

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No functional changes.
This commit is contained in:
Petri Lehtinen 2009-07-11 10:52:57 +03:00
parent 13c7ad3219
commit 287ec3f9da
1 changed files with 73 additions and 74 deletions
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147
src/load.c
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@ -11,15 +11,14 @@
#include <jansson.h>
#include "strbuffer.h"
#define JSON_TOKEN_INVALID -1
#define JSON_TOKEN_EOF 0
#define JSON_TOKEN_STRING 256
#define JSON_TOKEN_INTEGER 257
#define JSON_TOKEN_REAL 258
#define JSON_TOKEN_TRUE 259
#define JSON_TOKEN_FALSE 260
#define JSON_TOKEN_NULL 261
#define TOKEN_INVALID -1
#define TOKEN_EOF 0
#define TOKEN_STRING 256
#define TOKEN_INTEGER 257
#define TOKEN_REAL 258
#define TOKEN_TRUE 259
#define TOKEN_FALSE 260
#define TOKEN_NULL 261
typedef struct {
const char *input;
@ -31,13 +30,13 @@ typedef struct {
int integer;
double real;
} value;
} json_lex;
} lex_t;
/*** error reporting ***/
static void json_set_error(json_error_t *error, const json_lex *lex,
const char *msg, ...)
static void error_set(json_error_t *error, const lex_t *lex,
const char *msg, ...)
{
va_list ap;
char text[JSON_ERROR_TEXT_LENGTH];
@ -74,13 +73,13 @@ static void json_set_error(json_error_t *error, const json_lex *lex,
/*** lexical analyzer ***/
static void json_scan_string(json_lex *lex)
static void lex_scan_string(lex_t *lex)
{
/* skip the " */
const char *p = lex->input + 1;
char *t;
lex->token = JSON_TOKEN_INVALID;
lex->token = TOKEN_INVALID;
while(*p != '"') {
if(*p == '\0') {
@ -154,18 +153,18 @@ static void json_scan_string(json_lex *lex)
p++;
*t = '\0';
lex->token = JSON_TOKEN_STRING;
lex->token = TOKEN_STRING;
out:
lex->input = p;
}
static void json_scan_number(json_lex *lex)
static void lex_scan_number(lex_t *lex)
{
const char *p = lex->input;
char *end;
lex->token = JSON_TOKEN_INVALID;
lex->token = TOKEN_INVALID;
if(*p == '-')
p++;
@ -182,7 +181,7 @@ static void json_scan_number(json_lex *lex)
}
if(*p != '.' && *p != 'E' && *p != 'e') {
lex->token = JSON_TOKEN_INTEGER;
lex->token = TOKEN_INTEGER;
lex->value.integer = strtol(lex->start, &end, 10);
assert(end == p);
@ -213,7 +212,7 @@ static void json_scan_number(json_lex *lex)
p++;
}
lex->token = JSON_TOKEN_REAL;
lex->token = TOKEN_REAL;
lex->value.real = strtod(lex->start, &end);
assert(end == p);
@ -222,11 +221,11 @@ out:
lex->input = p;
}
static int json_lex_scan(json_lex *lex)
static int lex_scan(lex_t *lex)
{
char c;
if(lex->token == JSON_TOKEN_STRING) {
if(lex->token == TOKEN_STRING) {
free(lex->value.string);
lex->value.string = NULL;
}
@ -245,7 +244,7 @@ static int json_lex_scan(json_lex *lex)
c = *lex->input;
if(c == '\0')
lex->token = JSON_TOKEN_EOF;
lex->token = TOKEN_EOF;
else if(c == '{' || c == '}' || c == '[' || c == ']' ||
c == ':' || c == ',')
@ -255,10 +254,10 @@ static int json_lex_scan(json_lex *lex)
}
else if(c == '"')
json_scan_string(lex);
lex_scan_string(lex);
else if(isdigit(c) || c == '-')
json_scan_number(lex);
lex_scan_number(lex);
else if(isupper(c) || islower(c)) {
/* eat up the whole identifier for clearer error messages */
@ -269,51 +268,51 @@ static int json_lex_scan(json_lex *lex)
len = lex->input - lex->start;
if(strncmp(lex->start, "true", len) == 0)
lex->token = JSON_TOKEN_TRUE;
lex->token = TOKEN_TRUE;
else if(strncmp(lex->start, "false", len) == 0)
lex->token = JSON_TOKEN_FALSE;
lex->token = TOKEN_FALSE;
else if(strncmp(lex->start, "null", len) == 0)
lex->token = JSON_TOKEN_NULL;
lex->token = TOKEN_NULL;
else
lex->token = JSON_TOKEN_INVALID;
lex->token = TOKEN_INVALID;
}
else {
lex->token = JSON_TOKEN_INVALID;
lex->token = TOKEN_INVALID;
lex->input++;
}
return lex->token;
}
static int json_lex_init(json_lex *lex, const char *input)
static int lex_init(lex_t *lex, const char *input)
{
lex->input = input;
lex->token = JSON_TOKEN_INVALID;
lex->token = TOKEN_INVALID;
lex->line = 1;
json_lex_scan(lex);
lex_scan(lex);
return 0;
}
static void json_lex_close(json_lex *lex)
static void lex_close(lex_t *lex)
{
if(lex->token == JSON_TOKEN_STRING)
if(lex->token == TOKEN_STRING)
free(lex->value.string);
}
/*** parser ***/
static json_t *json_parse(json_lex *lex, json_error_t *error);
static json_t *parse(lex_t *lex, json_error_t *error);
static json_t *json_parse_object(json_lex *lex, json_error_t *error)
static json_t *parse_object(lex_t *lex, json_error_t *error)
{
json_t *object = json_object();
if(!object)
return NULL;
json_lex_scan(lex);
lex_scan(lex);
if(lex->token == '}')
return object;
@ -321,8 +320,8 @@ static json_t *json_parse_object(json_lex *lex, json_error_t *error)
char *key;
json_t *value;
if(lex->token != JSON_TOKEN_STRING) {
json_set_error(error, lex, "string expected");
if(lex->token != TOKEN_STRING) {
error_set(error, lex, "string expected");
goto error;
}
@ -330,16 +329,16 @@ static json_t *json_parse_object(json_lex *lex, json_error_t *error)
if(!key)
return NULL;
json_lex_scan(lex);
lex_scan(lex);
if(lex->token != ':') {
free(key);
json_set_error(error, lex, "':' expected");
error_set(error, lex, "':' expected");
goto error;
}
json_lex_scan(lex);
lex_scan(lex);
value = json_parse(lex, error);
value = parse(lex, error);
if(!value) {
free(key);
goto error;
@ -357,11 +356,11 @@ static json_t *json_parse_object(json_lex *lex, json_error_t *error)
if(lex->token != ',')
break;
json_lex_scan(lex);
lex_scan(lex);
}
if(lex->token != '}') {
json_set_error(error, lex, "'}' expected");
error_set(error, lex, "'}' expected");
goto error;
}
@ -372,18 +371,18 @@ error:
return NULL;
}
static json_t *json_parse_array(json_lex *lex, json_error_t *error)
static json_t *parse_array(lex_t *lex, json_error_t *error)
{
json_t *array = json_array();
if(!array)
return NULL;
json_lex_scan(lex);
lex_scan(lex);
if(lex->token == ']')
return array;
while(lex->token) {
json_t *elem = json_parse(lex, error);
json_t *elem = parse(lex, error);
if(!elem)
goto error;
@ -396,12 +395,12 @@ static json_t *json_parse_array(json_lex *lex, json_error_t *error)
if(lex->token != ',')
break;
json_lex_scan(lex);
lex_scan(lex);
}
if(lex->token != ']') {
json_set_error(error, lex, "']' expected");
error_set(error, lex, "']' expected");
goto error;
}
@ -412,59 +411,59 @@ error:
return NULL;
}
static json_t *json_parse(json_lex *lex, json_error_t *error)
static json_t *parse(lex_t *lex, json_error_t *error)
{
json_t *json;
switch(lex->token) {
case JSON_TOKEN_STRING: {
case TOKEN_STRING: {
json = json_string(lex->value.string);
break;
}
case JSON_TOKEN_INTEGER: {
case TOKEN_INTEGER: {
json = json_integer(lex->value.integer);
break;
}
case JSON_TOKEN_REAL: {
case TOKEN_REAL: {
json = json_real(lex->value.real);
break;
}
case JSON_TOKEN_TRUE:
case TOKEN_TRUE:
json = json_true();
break;
case JSON_TOKEN_FALSE:
case TOKEN_FALSE:
json = json_false();
break;
case JSON_TOKEN_NULL:
case TOKEN_NULL:
json = json_null();
break;
case '{':
json = json_parse_object(lex, error);
json = parse_object(lex, error);
break;
case '[':
json = json_parse_array(lex, error);
json = parse_array(lex, error);
break;
case JSON_TOKEN_INVALID:
json_set_error(error, lex, "invalid token");
case TOKEN_INVALID:
error_set(error, lex, "invalid token");
return NULL;
default:
json_set_error(error, lex, "unexpected token");
error_set(error, lex, "unexpected token");
return NULL;
}
if(!json)
return NULL;
json_lex_scan(lex);
lex_scan(lex);
return json;
}
@ -476,7 +475,7 @@ json_t *json_load(const char *path, json_error_t *error)
fp = fopen(path, "r");
if(!fp)
{
json_set_error(error, NULL, "unable to open %s: %s",
error_set(error, NULL, "unable to open %s: %s",
path, strerror(errno));
return NULL;
}
@ -489,29 +488,29 @@ json_t *json_load(const char *path, json_error_t *error)
json_t *json_loads(const char *string, json_error_t *error)
{
json_lex lex;
lex_t lex;
json_t *result = NULL;
if(json_lex_init(&lex, string))
if(lex_init(&lex, string))
return NULL;
if(lex.token != '[' && lex.token != '{') {
json_set_error(error, &lex, "'[' or '{' expected");
error_set(error, &lex, "'[' or '{' expected");
goto out;
}
result = json_parse(&lex, error);
result = parse(&lex, error);
if(!result)
goto out;
if(lex.token != JSON_TOKEN_EOF) {
json_set_error(error, &lex, "end of file expected");
if(lex.token != TOKEN_EOF) {
error_set(error, &lex, "end of file expected");
json_decref(result);
result = NULL;
}
out:
json_lex_close(&lex);
lex_close(&lex);
return result;
}
@ -534,7 +533,7 @@ json_t *json_loadf(FILE *input, json_error_t *error)
{
if(ferror(input))
{
json_set_error(error, NULL, "read error");
error_set(error, NULL, "read error");
goto out;
}
break;
@ -565,7 +564,7 @@ json_t *json_loadfd(int fd, json_error_t *error)
length = read(fd, buffer, BUFFER_SIZE);
if(length == -1)
{
json_set_error(error, NULL, "read error: %s", strerror(errno));
error_set(error, NULL, "read error: %s", strerror(errno));
goto out;
}
else if(length == 0)
@ -573,7 +572,7 @@ json_t *json_loadfd(int fd, json_error_t *error)
if(strbuffer_append_bytes(&strbuff, buffer, length))
{
json_set_error(error, NULL, "error allocating memory");
error_set(error, NULL, "error allocating memory");
goto out;
}
}