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cozis
2022-04-19 00:34:34 +02:00
parent a91b0308f9
commit 0d2fe6ac01
6 changed files with 275 additions and 129 deletions
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.gitignore
+2 -1
View File
@@ -1,2 +1,3 @@
test test
vgcore.* vgcore.*
parse-file
build.sh
+2 -1
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@@ -1 +1,2 @@
gcc test.c xjson.c -o test -Wall -Wextra -g gcc test.c xjson.c -o test -Wall -Wextra -g
gcc parse-file.c xjson.c -o parse-file -Wall -Wextra -g
parse-file.c
+83
View File
@@ -0,0 +1,83 @@
#include <assert.h>
#include <stdlib.h>
#include <stdio.h>
#include <ctype.h>
#include "xjson.h"
char *load_file(const char *path, int *len)
{
FILE *fp = fopen(path, "rb");
if(fp == NULL)
return NULL;
fseek(fp, 0, SEEK_END);
int len_ = ftell(fp);
fseek(fp, 0, SEEK_SET);
char *data = malloc(len_ + 1);
if(data == NULL)
{
fclose(fp);
return NULL;
}
if(fread(data, 1, len_, fp) != len_)
{
free(data);
fclose(fp);
return NULL;
}
data[len_] = '\0';
fclose(fp);
if(len)
*len = len_;
return data;
}
int main(int argc, char **argv)
{
if(argc < 2)
{
fprintf(stderr, "Error: Missing file\n");
fprintf(stderr, "Usage: %s <file>\n", argv[0]);
return 1;
}
int size;
char *data = load_file(argv[1], &size);
if(data == NULL)
{
fprintf(stderr, "Error: Failed to load file\n");
return 1;
}
char pool[65536];
xj_error error;
xj_alloc *alloc = xj_alloc_using(pool, sizeof(pool), 4096, NULL);
assert(alloc != NULL);
xj_value *val = xj_decode(data, size, alloc, &error);
if(val == NULL)
{
if(error.off < 0)
fprintf(stderr, "Error: %s\n", error.message);
else
fprintf(stderr, "Error %s:%d:%d: %s\n", argv[1], error.row+1, error.col+1, error.message);
xj_alloc_del(alloc);
free(data);
return 1;
}
fprintf(stderr, "OK\n");
xj_alloc_del(alloc);
free(data);
return 0;
}
test.c
+2 -4
View File
@@ -19,9 +19,7 @@ static const struct {
TEST("1"), TEST("1"),
TEST(" 1 "), TEST(" 1 "),
TEST("9999999999999999999999999999999999999999999"),
TEST("[]"), TEST("[]"),
TEST("[1, 2, 3]"), TEST("[1, 2, 3]"),
TEST(" [ ] "), TEST(" [ ] "),
@@ -67,7 +65,7 @@ int main()
for(int i = 0; i < total; i += 1) for(int i = 0; i < total; i += 1)
{ {
xj_alloc *alloc = xj_newAllocUsing(pool, sizeof(pool), 0, NULL); xj_alloc *alloc = xj_alloc_using(pool, sizeof(pool), 0, NULL);
assert(alloc != NULL); assert(alloc != NULL);
xj_value *val = xj_decode(tests[i].src, -1, alloc, &error); xj_value *val = xj_decode(tests[i].src, -1, alloc, &error);
xjson.c
+165 -106
View File
@@ -21,19 +21,20 @@ struct xj_alloc {
int ext_size; int ext_size;
}; };
xj_alloc *xj_newAlloc(int size, int ext) xj_alloc *xj_alloc_new(int size, int ext)
{ {
assert(size >= 0 && ext >= 0); assert(size >= 0 && ext >= 0);
void *temp = malloc(sizeof(xj_alloc) + sizeof(chunk_t) + size); int allocated = sizeof(xj_alloc) + sizeof(chunk_t) + size;
void *temp = malloc(allocated);
if(temp == NULL) if(temp == NULL)
return NULL; return NULL;
return xj_newAllocUsing(temp, sizeof(xj_alloc) + sizeof(chunk_t) + size, ext, free); return xj_alloc_using(temp, allocated, ext, free);
} }
xj_alloc *xj_newAllocUsing(void *mem, int size, int ext, void (*free)(void*)) xj_alloc *xj_alloc_using(void *mem, int size, int ext, void (*free)(void*))
{ {
assert(mem != NULL && size >= 0 && ext >= 0); assert(mem != NULL && size >= 0 && ext >= 0);
@@ -45,15 +46,23 @@ xj_alloc *xj_newAllocUsing(void *mem, int size, int ext, void (*free)(void*))
alloc->tail = (chunk_t*) (alloc + 1); alloc->tail = (chunk_t*) (alloc + 1);
alloc->tail->prev = NULL; alloc->tail->prev = NULL;
alloc->tail_used = 0; alloc->tail_used = 0;
alloc->tail_size = size - sizeof(xj_alloc) - sizeof(chunk_t); alloc->tail_size = size - (sizeof(xj_alloc) + sizeof(chunk_t));
alloc->ext_size = ext; alloc->ext_size = ext;
return alloc; return alloc;
} }
void xj_freeAlloc(xj_alloc *alloc) void xj_alloc_del(xj_alloc *alloc)
{ {
if(alloc->free != NULL) if(alloc->free != NULL)
alloc->free(alloc); alloc->free(alloc);
chunk_t *curr = alloc->tail;
while(curr->prev != NULL)
{
chunk_t *prev = curr->prev;
free(curr);
curr = prev;
}
} }
unsigned long long next_aligned(unsigned long long n) unsigned long long next_aligned(unsigned long long n)
@@ -86,13 +95,63 @@ void *xj_bpalloc(xj_alloc *alloc, int size)
alloc->tail_size = alloc->ext_size; alloc->tail_size = alloc->ext_size;
} }
return alloc->tail->body + (alloc->tail_used += size); void *addr = alloc->tail->body + alloc->tail_used;
alloc->tail_used += size;
return addr;
} }
xj_value *xj_newNull(xj_alloc *alloc) static void xj_preport(xj_error *error, const char *src, int off, const char *fmt, ...)
{
if(error != NULL)
{
int row, col;
if(src != NULL)
{
// Calculate column and row given
// the source string and an index
// in it.
assert(off >= 0);
col = 0;
row = 0;
int i = 0;
while(i < off)
{
if(src[i] == '\n')
{
row += 1;
col = 0;
}
else
col += 1;
i += 1;
}
}
int k;
va_list va;
va_start(va, fmt);
k = vsnprintf(error->message, sizeof(error->message), fmt, va);
va_end(va);
assert(k >= 0);
error->truncated = (k >= (int) sizeof(error->message)-1);
error->occurred = 1;
error->off = off;
error->row = row;
error->col = col;
}
}
#define xj_report(error, fmt, ...) xj_preport(error, NULL, -1, fmt, ## __VA_ARGS__)
xj_value *xj_value_null(xj_alloc *alloc, xj_error *error)
{ {
xj_value *x = xj_bpalloc(alloc, sizeof(xj_value)); xj_value *x = xj_bpalloc(alloc, sizeof(xj_value));
if(x != NULL) if(x == NULL)
xj_report(error, "Out of memory");
else
{ {
x->type = XJ_NULL; x->type = XJ_NULL;
x->size = -1; x->size = -1;
@@ -102,9 +161,9 @@ xj_value *xj_newNull(xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newBool(xj_bool val, xj_alloc *alloc) xj_value *xj_value_bool(xj_bool val, xj_alloc *alloc, xj_error *error)
{ {
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_BOOL; x->type = XJ_BOOL;
@@ -113,9 +172,9 @@ xj_value *xj_newBool(xj_bool val, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newInt(xj_i64 val, xj_alloc *alloc) xj_value *xj_value_int(xj_i64 val, xj_alloc *alloc, xj_error *error)
{ {
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_INT; x->type = XJ_INT;
@@ -124,9 +183,9 @@ xj_value *xj_newInt(xj_i64 val, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newFloat(xj_f64 val, xj_alloc *alloc) xj_value *xj_value_float(xj_f64 val, xj_alloc *alloc, xj_error *error)
{ {
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_FLOAT; x->type = XJ_FLOAT;
@@ -135,17 +194,17 @@ xj_value *xj_newFloat(xj_f64 val, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newString(const char *str, int len, xj_alloc *alloc) xj_value *xj_value_string(const char *str, int len, xj_alloc *alloc, xj_error *error)
{ {
if(str == NULL) str = ""; if(str == NULL) str = "";
if(len < 0) len = strlen(str); if(len < 0) len = strlen(str);
char *copy = xj_strdup(str, len, alloc); char *copy = xj_strdup(str, len, alloc, error);
if(copy == NULL) if(copy == NULL)
return NULL; return NULL;
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_STRING; x->type = XJ_STRING;
@@ -155,7 +214,7 @@ xj_value *xj_newString(const char *str, int len, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newArray__nocheck(xj_value *head, int count, xj_alloc *alloc) xj_value *xj_value_array__nocheck(xj_value *head, int count, xj_alloc *alloc, xj_error *error)
{ {
if(count < 0) if(count < 0)
{ {
@@ -168,7 +227,7 @@ xj_value *xj_newArray__nocheck(xj_value *head, int count, xj_alloc *alloc)
} }
} }
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_ARRAY; x->type = XJ_ARRAY;
@@ -178,7 +237,7 @@ xj_value *xj_newArray__nocheck(xj_value *head, int count, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newArray(xj_value *head, xj_alloc *alloc) xj_value *xj_value_array(xj_value *head, xj_alloc *alloc, xj_error *error)
{ {
int count = 0; int count = 0;
xj_value *curs = head; xj_value *curs = head;
@@ -194,10 +253,10 @@ xj_value *xj_newArray(xj_value *head, xj_alloc *alloc)
curs = curs->next; curs = curs->next;
} }
return xj_newArray__nocheck(head, count, alloc); return xj_value_array__nocheck(head, count, alloc, error);
} }
xj_value *xj_newObject__nocheck(xj_value *head, int count, xj_alloc *alloc) xj_value *xj_value_object__nocheck(xj_value *head, int count, xj_alloc *alloc, xj_error *error)
{ {
if(count < 0) if(count < 0)
{ {
@@ -210,7 +269,7 @@ xj_value *xj_newObject__nocheck(xj_value *head, int count, xj_alloc *alloc)
} }
} }
xj_value *x = xj_newNull(alloc); xj_value *x = xj_value_null(alloc, error);
if(x != NULL) if(x != NULL)
{ {
x->type = XJ_OBJECT; x->type = XJ_OBJECT;
@@ -220,7 +279,7 @@ xj_value *xj_newObject__nocheck(xj_value *head, int count, xj_alloc *alloc)
return x; return x;
} }
xj_value *xj_newObject(xj_value *head, xj_alloc *alloc) xj_value *xj_value_object(xj_value *head, xj_alloc *alloc, xj_error *error)
{ {
int count = 0; int count = 0;
xj_value *curs = head; xj_value *curs = head;
@@ -248,10 +307,10 @@ xj_value *xj_newObject(xj_value *head, xj_alloc *alloc)
curs = curs->next; curs = curs->next;
} }
return xj_newObject__nocheck(head, count, alloc); return xj_value_object__nocheck(head, count, alloc, error);
} }
char *xj_strdup(const char *str, int len, xj_alloc *alloc) char *xj_strdup(const char *str, int len, xj_alloc *alloc, xj_error *error)
{ {
assert(str != NULL); assert(str != NULL);
@@ -260,7 +319,9 @@ char *xj_strdup(const char *str, int len, xj_alloc *alloc)
char *copy = xj_bpalloc(alloc, len+1); char *copy = xj_bpalloc(alloc, len+1);
if(copy != NULL) if(copy == NULL)
xj_report(error, "Out of memory");
else
{ {
memcpy(copy, str, len); memcpy(copy, str, len);
copy[len] = '\0'; copy[len] = '\0';
@@ -268,23 +329,6 @@ char *xj_strdup(const char *str, int len, xj_alloc *alloc)
return copy; return copy;
} }
static void xj_report(xj_error *error, const char *fmt, ...)
{
if(error != NULL)
{
int k;
va_list va;
va_start(va, fmt);
k = vsnprintf(error->message, sizeof(error->message), fmt, va);
va_end(va);
assert(k >= 0);
error->truncated = (k >= (int) sizeof(error->message)-1);
error->occurred = 1;
}
}
typedef struct { typedef struct {
const char *str; const char *str;
int i, len; int i, len;
@@ -292,7 +336,7 @@ typedef struct {
xj_error *error; xj_error *error;
} context_t; } context_t;
static void *parseString(context_t *ctx, _Bool raw) static void *parse_string(context_t *ctx, _Bool raw)
{ {
assert(ctx->i < ctx->len && ctx->str[ctx->i] == '"'); assert(ctx->i < ctx->len && ctx->str[ctx->i] == '"');
@@ -313,11 +357,14 @@ static void *parseString(context_t *ctx, _Bool raw)
ctx->i += 1; // Skip '"'. ctx->i += 1; // Skip '"'.
return raw ? (void*) xj_strdup(ctx->str + start, end - start, ctx->alloc) void *p = raw ? (void*) xj_strdup(ctx->str + start, end - start, ctx->alloc, ctx->error)
: (void*) xj_newString(ctx->str + start, end - start, ctx->alloc); : (void*) xj_value_string(ctx->str + start, end - start, ctx->alloc, ctx->error);
if(p == NULL)
xj_report(ctx->error, "No memory");
return p;
} }
static xj_value *parseNumber(context_t *ctx) static xj_value *parse_number(context_t *ctx)
{ {
assert(ctx->i < ctx->len && isdigit(ctx->str[ctx->i])); assert(ctx->i < ctx->len && isdigit(ctx->str[ctx->i]));
@@ -328,7 +375,7 @@ static xj_value *parseNumber(context_t *ctx)
if(parsed > (INT64_MAX - ctx->str[ctx->i] + '0') / 10) if(parsed > (INT64_MAX - ctx->str[ctx->i] + '0') / 10)
{ {
/* Overflow */ /* Overflow */
xj_report(ctx->error, "Integer would overflow"); xj_preport(ctx->error, ctx->str, ctx->i, "Integer would overflow");
return NULL; return NULL;
} }
@@ -352,19 +399,19 @@ static xj_value *parseNumber(context_t *ctx)
ctx->i += 1; ctx->i += 1;
} }
return xj_newFloat(parsed2, ctx->alloc); return xj_value_float(parsed2, ctx->alloc, ctx->error);
} }
return xj_newInt(parsed, ctx->alloc); return xj_value_int(parsed, ctx->alloc, ctx->error);
} }
static xj_value *parseValue(context_t *ctx); static xj_value *parse_value(context_t *ctx);
static xj_value *parseArray(context_t *ctx) static xj_value *parse_array(context_t *ctx)
{ {
assert(ctx->i < ctx->len && ctx->str[ctx->i] == '['); assert(ctx->i < ctx->len && ctx->str[ctx->i] == '[');
ctx->i += 1; // Skip ']'. ctx->i += 1; // Skip '['.
// Skip whitespace. // Skip whitespace.
while(ctx->i < ctx->len && isspace(ctx->str[ctx->i])) while(ctx->i < ctx->len && isspace(ctx->str[ctx->i]))
@@ -377,7 +424,10 @@ static xj_value *parseArray(context_t *ctx)
} }
if(ctx->str[ctx->i] == ']') /* Empty array */ if(ctx->str[ctx->i] == ']') /* Empty array */
return xj_newArray__nocheck(NULL, 0, ctx->alloc); {
ctx->i += 1; // Skip ']'.
return xj_value_array__nocheck(NULL, 0, ctx->alloc, ctx->error);
}
xj_value *head = NULL; xj_value *head = NULL;
xj_value **tail = &head; xj_value **tail = &head;
@@ -385,7 +435,7 @@ static xj_value *parseArray(context_t *ctx)
while(1) while(1)
{ {
xj_value *child = parseValue(ctx); xj_value *child = parse_value(ctx);
if(child == NULL) if(child == NULL)
return NULL; return NULL;
@@ -409,7 +459,7 @@ static xj_value *parseArray(context_t *ctx)
if(ctx->str[ctx->i] != ',') if(ctx->str[ctx->i] != ',')
{ {
xj_report(ctx->error, "Bad character '%c' inside of an array", ctx->str[ctx->i]); xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c' inside of an array", ctx->str[ctx->i]);
return NULL; return NULL;
} }
@@ -428,10 +478,10 @@ static xj_value *parseArray(context_t *ctx)
ctx->i += 1; // Skip ']'. ctx->i += 1; // Skip ']'.
return xj_newArray__nocheck(head, count, ctx->alloc); return xj_value_array__nocheck(head, count, ctx->alloc, ctx->error);
} }
static xj_value *parseObject(context_t *ctx) static xj_value *parse_object(context_t *ctx)
{ {
assert(ctx->i < ctx->len && ctx->str[ctx->i] == '{'); assert(ctx->i < ctx->len && ctx->str[ctx->i] == '{');
@@ -448,7 +498,7 @@ static xj_value *parseObject(context_t *ctx)
} }
if(ctx->str[ctx->i] == '}') /* Empty object */ if(ctx->str[ctx->i] == '}') /* Empty object */
return xj_newObject__nocheck(NULL, 0, ctx->alloc); return xj_value_object__nocheck(NULL, 0, ctx->alloc, ctx->error);
xj_value *head = NULL; xj_value *head = NULL;
xj_value **tail = &head; xj_value **tail = &head;
@@ -458,11 +508,11 @@ static xj_value *parseObject(context_t *ctx)
{ {
if(ctx->str[ctx->i] != '"') if(ctx->str[ctx->i] != '"')
{ {
xj_report(ctx->error, "Bad character '%c' where a string was expected"); xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c' where a string was expected");
return NULL; return NULL;
} }
char *key = parseString(ctx, 1); char *key = parse_string(ctx, 1);
if(key == NULL) if(key == NULL)
return NULL; return NULL;
@@ -479,7 +529,7 @@ static xj_value *parseObject(context_t *ctx)
if(ctx->str[ctx->i] != ':') if(ctx->str[ctx->i] != ':')
{ {
xj_report(ctx->error, "Bad character '%c' where ':' was expected"); xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c' where ':' was expected");
return NULL; return NULL;
} }
@@ -489,7 +539,7 @@ static xj_value *parseObject(context_t *ctx)
while(ctx->i < ctx->len && isspace(ctx->str[ctx->i])) while(ctx->i < ctx->len && isspace(ctx->str[ctx->i]))
ctx->i += 1; ctx->i += 1;
xj_value *child = parseValue(ctx); xj_value *child = parse_value(ctx);
if(child == NULL) if(child == NULL)
return NULL; return NULL;
@@ -515,7 +565,7 @@ static xj_value *parseObject(context_t *ctx)
if(ctx->str[ctx->i] != ',') if(ctx->str[ctx->i] != ',')
{ {
xj_report(ctx->error, "Bad character '%c' inside of an object", ctx->str[ctx->i]); xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c' inside of an object", ctx->str[ctx->i]);
return NULL; return NULL;
} }
@@ -534,10 +584,10 @@ static xj_value *parseObject(context_t *ctx)
ctx->i += 1; // Skip '}'. ctx->i += 1; // Skip '}'.
return xj_newObject__nocheck(head, count, ctx->alloc); return xj_value_object__nocheck(head, count, ctx->alloc, ctx->error);
} }
static xj_value *parseValue(context_t *ctx) static xj_value *parse_value(context_t *ctx)
{ {
if(ctx->i == ctx->len) if(ctx->i == ctx->len)
{ {
@@ -550,16 +600,16 @@ static xj_value *parseValue(context_t *ctx)
char c = ctx->str[ctx->i]; char c = ctx->str[ctx->i];
if(c == '"') if(c == '"')
return parseString(ctx, 0); return parse_string(ctx, 0);
if(isdigit(c)) if(isdigit(c))
return parseNumber(ctx); return parse_number(ctx);
if(c == '[') if(c == '[')
return parseArray(ctx); return parse_array(ctx);
if(c == '{') if(c == '{')
return parseObject(ctx); return parse_object(ctx);
static const char kword_null [] = "null"; static const char kword_null [] = "null";
static const char kword_true [] = "true"; static const char kword_true [] = "true";
@@ -572,27 +622,30 @@ static xj_value *parseValue(context_t *ctx)
kword = kword_null; kword = kword_null;
kwlen = sizeof(kword_null)-1; kwlen = sizeof(kword_null)-1;
} }
else if(c == 't')
if(c == 't')
{ {
kword = kword_true; kword = kword_true;
kwlen = sizeof(kword_true)-1; kwlen = sizeof(kword_true)-1;
} }
else if(c == 'f')
if(c == 'f')
{ {
kword = kword_false; kword = kword_false;
kwlen = sizeof(kword_false)-1; kwlen = sizeof(kword_false)-1;
} }
else
{
xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c'", c);
return NULL;
}
if(ctx->i + kwlen <= ctx->len && !strncmp(ctx->str + ctx->i, kword, kwlen)) if(ctx->i + kwlen <= ctx->len && !strncmp(ctx->str + ctx->i, kword, kwlen))
{ {
ctx->i += kwlen; ctx->i += kwlen;
switch(c) switch(c)
{ {
case 'n': return xj_newNull(ctx->alloc); case 'n': return xj_value_null(ctx->alloc, ctx->error);
case 't': return xj_newBool(1, ctx->alloc); case 't': return xj_value_bool(1, ctx->alloc, ctx->error);
case 'f': return xj_newBool(0, ctx->alloc); case 'f': return xj_value_bool(0, ctx->alloc, ctx->error);
} }
/* UNREACHABLE */ /* UNREACHABLE */
} }
@@ -610,15 +663,21 @@ static xj_value *parseValue(context_t *ctx)
ctx->i += p; ctx->i += p;
} }
xj_report(ctx->error, "Bad character '%c'", ctx->str[ctx->i]); xj_preport(ctx->error, ctx->str, ctx->i, "Bad character '%c'", ctx->str[ctx->i]);
return NULL; return NULL;
} }
xj_value *xj_decode(const char *str, int len, xj_value *xj_decode(const char *str, int len,
xj_alloc *alloc, xj_error *error) xj_alloc *alloc, xj_error *error)
{ {
if(str == NULL) str = ""; if(str == NULL)
if(len < 0) len = strlen(str); str = "";
if(len < 0)
len = strlen(str);
if(error != NULL)
memset(error, 0, sizeof(xj_error));
int i = 0; int i = 0;
@@ -635,7 +694,7 @@ xj_value *xj_decode(const char *str, int len,
context_t ctx = { context_t ctx = {
.str = str, .i = i, .len = len, .str = str, .i = i, .len = len,
.alloc = alloc, .error = error }; .alloc = alloc, .error = error };
return parseValue(&ctx); return parse_value(&ctx);
} }
typedef struct bucket_t bucket_t; typedef struct bucket_t bucket_t;
@@ -649,7 +708,7 @@ typedef struct {
bucket_t *tail, head; bucket_t *tail, head;
} buffer_t; } buffer_t;
static xj_bool appendString(buffer_t *buff, const char *str, int len) static xj_bool append_string(buffer_t *buff, const char *str, int len)
{ {
assert(str != NULL && len >= 0); assert(str != NULL && len >= 0);
@@ -671,31 +730,31 @@ static xj_bool appendString(buffer_t *buff, const char *str, int len)
return 1; return 1;
} }
static _Bool encodeString(const char *str, int len, buffer_t *buff) static _Bool encode_string(const char *str, int len, buffer_t *buff)
{ {
if(!appendString(buff, "\"", 1)) if(!append_string(buff, "\"", 1))
return 0; return 0;
if(!appendString(buff, str, len)) if(!append_string(buff, str, len))
return 0; return 0;
if(!appendString(buff, "\"", 1)) if(!append_string(buff, "\"", 1))
return 0; return 0;
return 1; return 1;
} }
static _Bool encodeValue(xj_value *val, buffer_t *buff) static _Bool encode_value(xj_value *val, buffer_t *buff)
{ {
switch(val == NULL ? XJ_NULL : val->type) switch(val == NULL ? XJ_NULL : val->type)
{ {
case XJ_NULL: case XJ_NULL:
return appendString(buff, "null", 4); return append_string(buff, "null", 4);
case XJ_BOOL: case XJ_BOOL:
return val->as_bool return val->as_bool
? appendString(buff, "true", 4) ? append_string(buff, "true", 4)
: appendString(buff, "false", 5); : append_string(buff, "false", 5);
case XJ_INT: case XJ_INT:
{ {
@@ -703,7 +762,7 @@ static _Bool encodeValue(xj_value *val, buffer_t *buff)
int k = snprintf(temp, sizeof(temp), int k = snprintf(temp, sizeof(temp),
"%lld", val->as_int); "%lld", val->as_int);
assert(k >= 0 && k < (int) sizeof(temp)); assert(k >= 0 && k < (int) sizeof(temp));
if(!appendString(buff, temp, k)) if(!append_string(buff, temp, k))
return 0; return 0;
return 1; return 1;
} }
@@ -714,65 +773,65 @@ static _Bool encodeValue(xj_value *val, buffer_t *buff)
int k = snprintf(temp, sizeof(temp), int k = snprintf(temp, sizeof(temp),
"%g", val->as_float); "%g", val->as_float);
assert(k >= 0 && k < (int) sizeof(temp)); assert(k >= 0 && k < (int) sizeof(temp));
if(!appendString(buff, temp, k)) if(!append_string(buff, temp, k))
return 0; return 0;
return 1; return 1;
} }
case XJ_ARRAY: case XJ_ARRAY:
{ {
if(!appendString(buff, "[", 1)) if(!append_string(buff, "[", 1))
return 0; return 0;
xj_value *child = val->as_object; xj_value *child = val->as_object;
while(child != NULL) while(child != NULL)
{ {
if(!encodeValue(child, buff)) if(!encode_value(child, buff))
return 0; return 0;
child = child->next; child = child->next;
if(child != NULL) if(child != NULL)
if(!appendString(buff, ", ", 2)) if(!append_string(buff, ", ", 2))
return 0; return 0;
} }
if(!appendString(buff, "]", 1)) if(!append_string(buff, "]", 1))
return 0; return 0;
return 1; return 1;
} }
case XJ_OBJECT: case XJ_OBJECT:
{ {
if(!appendString(buff, "{", 1)) if(!append_string(buff, "{", 1))
return 0; return 0;
xj_value *child = val->as_object; xj_value *child = val->as_object;
while(child != NULL) while(child != NULL)
{ {
if(!encodeString(child->key, strlen(child->key), buff)) if(!encode_string(child->key, strlen(child->key), buff))
return 0; return 0;
if(!appendString(buff, ": ", 2)) if(!append_string(buff, ": ", 2))
return 0; return 0;
if(!encodeValue(child, buff)) if(!encode_value(child, buff))
return 0; return 0;
child = child->next; child = child->next;
if(child != NULL) if(child != NULL)
if(!appendString(buff, ", ", 2)) if(!append_string(buff, ", ", 2))
return 0; return 0;
} }
if(!appendString(buff, "}", 1)) if(!append_string(buff, "}", 1))
return 0; return 0;
return 1; return 1;
} }
case XJ_STRING: case XJ_STRING:
return encodeString(val->as_string, val->size, buff); return encode_string(val->as_string, val->size, buff);
} }
return 0; return 0;
} }
@@ -785,7 +844,7 @@ char *xj_encode(xj_value *value, int *len)
buff.tail = &buff.head; buff.tail = &buff.head;
buff.head.next = NULL; buff.head.next = NULL;
_Bool ok = encodeValue(value, &buff); _Bool ok = encode_value(value, &buff);
char *serialized = NULL; char *serialized = NULL;
xjson.h
+21 -17
View File
@@ -2,8 +2,8 @@ typedef double xj_f64;
typedef long long xj_i64; typedef long long xj_i64;
typedef _Bool xj_bool; typedef _Bool xj_bool;
_Static_assert(sizeof(xj_f64) == 8); _Static_assert(sizeof(xj_f64) == 8, "double isn't 8 bytes long");
_Static_assert(sizeof(xj_i64) == 8); _Static_assert(sizeof(xj_i64) == 8, "long long isn't 8 bytes long");
enum { enum {
XJ_NULL, XJ_NULL,
@@ -34,23 +34,27 @@ struct xj_value {
typedef struct { typedef struct {
xj_bool occurred; xj_bool occurred;
xj_bool truncated; xj_bool truncated;
int off, row, col;
char message[128]; char message[128];
} xj_error; } xj_error;
typedef struct xj_alloc xj_alloc; typedef struct xj_alloc xj_alloc;
xj_alloc *xj_newAlloc(int size, int ext); xj_alloc *xj_alloc_using(void *mem, int size, int ext, void (*free)(void*));
xj_alloc *xj_newAllocUsing(void *mem, int size, int ext, void (*free)(void*)); xj_alloc *xj_alloc_new(int size, int ext);
void xj_freeAlloc(xj_alloc *alloc); void xj_alloc_del(xj_alloc *alloc);
void *xj_bpMalloc(xj_alloc *alloc, unsigned int size); void *xj_bpalloc(xj_alloc *alloc, int size);
xj_value *xj_newNull(xj_alloc *alloc);
xj_value *xj_newBool(xj_bool val, xj_alloc *alloc); xj_value *xj_value_null(xj_alloc *alloc, xj_error *error);
xj_value *xj_newInt(xj_i64 val, xj_alloc *alloc); xj_value *xj_value_bool(xj_bool val, xj_alloc *alloc, xj_error *error);
xj_value *xj_newFloat(xj_f64 val, xj_alloc *alloc); xj_value *xj_value_int(xj_i64 val, xj_alloc *alloc, xj_error *error);
xj_value *xj_newArray(xj_value *head, xj_alloc *alloc); xj_value *xj_value_float(xj_f64 val, xj_alloc *alloc, xj_error *error);
xj_value *xj_newArray__nocheck(xj_value *head, int count, xj_alloc *alloc); xj_value *xj_value_array(xj_value *head, xj_alloc *alloc, xj_error *error);
xj_value *xj_newObject(xj_value *head, xj_alloc *alloc); xj_value *xj_value_object(xj_value *head, xj_alloc *alloc, xj_error *error);
xj_value *xj_newObject__nocheck(xj_value *head, int count, xj_alloc *alloc); xj_value *xj_value_string(const char *str, int len, xj_alloc *alloc, xj_error *error);
xj_value *xj_newString(const char *str, int len, xj_alloc *alloc); xj_value *xj_value_array__nocheck(xj_value *head, int count, xj_alloc *alloc, xj_error *error);
char *xj_strdup(const char *str, int len, xj_alloc *alloc); xj_value *xj_value_object__nocheck(xj_value *head, int count, xj_alloc *alloc, xj_error *error);
char *xj_strdup(const char *str, int len, xj_alloc *alloc, xj_error *error);
xj_value *xj_decode(const char *str, int len, xj_alloc *alloc, xj_error *error); xj_value *xj_decode(const char *str, int len, xj_alloc *alloc, xj_error *error);
char *xj_encode(xj_value *value, int *len); char *xj_encode(xj_value *value, int *len);