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Fix config and file modules, add debug output

This commit is contained in:
Ilja Kartašov 2019-07-29 11:30:11 +02:00
parent 17ce2c5753
commit 2f5c10cf5d
5 changed files with 80 additions and 50 deletions
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89
config.c
View File

@ -12,15 +12,20 @@
*
* @see https://lowenware.com/
*/
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include <ctype.h>
#include <stdbool.h>
#include <cStuff/file.h>
#include <cStuff/config.h>
static const char
m_mixed_line_indent[] = "Line indent contains tabs and spaces"
, m_mixed_block_indent[] = "Block was initiated with different indent"
, m_incomplete_key[] = "Incomplete key"
, m_parser_error[] = "Parser error"
, m_indent_error[] = "Indent error"
, m_out_of_memory[] = "Out of memory"
;
@ -29,7 +34,7 @@ struct config_path {
int size;
int indent;
int level;
bool is_block;
bool is_node;
};
struct config_ctx {
@ -50,14 +55,13 @@ config_get_indent(char *line)
if (c == ' ' || c == '\t') {
if (!chr) {
chr = c;
} else {
}
if (chr == c) {
result++;
} else {
/* mixed indent */
return -1;
}
}
} else {
break;
}
@ -73,30 +77,35 @@ config_read_line(char *line, ssize_t length, struct cstuff_config *cfg)
{
const char *err = NULL;
CStuffConfigEvent evt = CSTUFF_CONFIG_NONE;
ssize_t i;
int k_len = 0, eq = -1, v_len = 0, last_ch = -1, tab = 0;
char c, *key, *val = NULL;
ssize_t i = 0;
int k_len = 0, v_len = 0, indent = 0;
char c, *key = NULL, *val = NULL;
cfg->line_num++;
fprintf(stderr, "cfg:%d ", cfg->line_num);
if ((indent = config_get_indent(line)) != -1) {
fprintf(stderr, "indent=%d ", indent);
key = &line[indent];
for (i = indent; i < length; i++) {
c = line[i];
if (islanum(c) || c == '_' || c == '-') {
if (isalnum(c) || c == '_' || c == '-') {
k_len++;
continue;
}
k_len++;
break;
}
while (i < length) {
switch ((c = line[i++])) {
case ':':
evt = CSTUFF_CONFIG_NODE;
fprintf(stderr, "node! ");
continue;
case '=':
evt = CSTUFF_CONFIG_PAIR;
fprintf(stderr, "pair! ");
continue;
case ' ':
case '\t':
@ -114,8 +123,7 @@ config_read_line(char *line, ssize_t length, struct cstuff_config *cfg)
err = m_incomplete_key;
}
} else if (evt == CSTUFF_CONFIG_PAIR) {
int l = i;
val = &line[i];
val = &line[i - 1];
while (i < length) {
switch (line[i++]) {
case ';':
@ -125,7 +133,7 @@ config_read_line(char *line, ssize_t length, struct cstuff_config *cfg)
case '\t':
continue;
default:
v_len = &line[i - 1];
v_len = (int) (&line[i] - val) - 1;
continue;
}
break;
@ -135,30 +143,32 @@ config_read_line(char *line, ssize_t length, struct cstuff_config *cfg)
err = m_parser_error;
}
} else {
evt = cSTUFF_CONFIG_ERROR;
evt = CSTUFF_CONFIG_ERROR;
err = m_mixed_line_indent;
}
/* Key ! */
if (key)
key[k_len] = 0;
fprintf(stderr, "\n");
switch ((cfg->evt = evt)) {
case CSTUFF_CONFIG_PAIR:
cfg->data.pair.key = key;
cfg->data.pair.value = val;
cfg->data.pair.value_len = v_len;
cfg->data.pair.val = val;
cfg->data.pair.val_len = v_len;
cfg->data.pair.key_len = k_len;
val[v_len] = 0;
return indent;
case CSTUFF_CONFIG_NODE:
cfg->data.pair.node = key;
cfg->data.pair.node_len = k_len;
cfg->data.node.name = key;
cfg->data.node.name_len = k_len;
return indent;
case CSTUFF_CONFIG_ERROR:
default:
cfg->data.error.char_num = i;
cfg->data.error.line_text = line;
cfg->data.error.err_text = err;
cfg->data.error.line_txt = line;
cfg->data.error.err_txt = err;
return -1;
}
}
@ -168,7 +178,8 @@ static void
config_set_path_key(struct config_ctx *ctx, int line_indent, bool is_node)
{
struct config_path *path = &ctx->path;
const char *key = ctx->cfg.data.pair.key, ptr;
const char *key = ctx->cfg.data.pair.key;
char *ptr;
int i, len, level, k_len = ctx->cfg.data.pair.key_len;
if (line_indent) {
@ -183,11 +194,14 @@ config_set_path_key(struct config_ctx *ctx, int line_indent, bool is_node)
level = 0;
}
if (level > path->level && !path->is_node ||
level - path->level != path->indent) {
if (level > path->level && (!path->is_node ||
level - path->level != path->indent)) {
fprintf(stderr, "cfg:%d ((%d > %d && !%d) || %d - %d != %d)\n",
ctx->cfg.line_num, level,
path->level, path->is_node & 0xFF, level, path->level, path->indent);
ctx->cfg.evt = CSTUFF_CONFIG_ERROR;
ctx->cfg.data.error.line_text = NULL;
ctx->cfg.data.error.err_text = m_indent_error;
ctx->cfg.data.error.line_txt = NULL;
ctx->cfg.data.error.err_txt = m_indent_error;
ctx->cfg.data.error.char_num = 0;
return;
}
@ -195,7 +209,8 @@ config_set_path_key(struct config_ctx *ctx, int line_indent, bool is_node)
ptr = ctx->path.key;
for (i = 0; i < level; i++) {
int l = strcspn(ptr, ".");
ptr += (l + 1);
ptr += l;
fprintf(stderr, "l = %d\n", l);
}
len = (ptr - ctx->path.key) + 1 + k_len + 1;
@ -203,8 +218,8 @@ config_set_path_key(struct config_ctx *ctx, int line_indent, bool is_node)
char *new_key;
if (!(new_key = realloc(ctx->path.key, len))) {
ctx->cfg.evt = CSTUFF_CONFIG_ERROR;
ctx->cfg.data.error.line_text = NULL;
ctx->cfg.data.error.err_text = m_out_of_memory;
ctx->cfg.data.error.line_txt = NULL;
ctx->cfg.data.error.err_txt = m_out_of_memory;
ctx->cfg.data.error.char_num = 0;
return;
}
@ -212,9 +227,14 @@ config_set_path_key(struct config_ctx *ctx, int line_indent, bool is_node)
ctx->path.size = len;
}
if (level) {
*(ptr++) = '.';
} else {
*ptr = 0;
}
strcpy(ptr, key);
path->level = level;
path->is_node = is_node;
ctx->cfg.data.pair.key = ctx->path.key;
}
@ -224,16 +244,19 @@ static int
config_get_line(char *line, ssize_t length, void *p_ctx)
{
int result;
struct config_ctx *ctx = (struct config_ctx *)ctx;
struct config_ctx *ctx = (struct config_ctx *)p_ctx;
memset(&ctx->cfg.data, 0, sizeof (ctx->cfg.data));
if ((result = config_read_line(line, length, &ctx->cfg)) != -1) {
bool is_node = (ctx->cfg.evt == CSTUFF_CONFIG_NODE);
/* result == indent */
config_set_path_key(ctx, indent, is_node);
config_set_path_key(ctx, result, is_node);
} else {
fprintf(stderr, "cfg: read line failed %d\n", result);
}
result = ctx->callback(&ctx->cfg, ctx->u_ptr);
}
return result;
}
@ -250,14 +273,16 @@ cstuff_config_parse(const char *file, CStuffConfigCallback callback, void *u_ptr
return CSTUFF_MALLOC_ERROR;
} else {
ctx.path.size = CSTUFF_CONFIG_PATH_SIZE;
ctx.path.indent = 0;
ctx.path.in_chr = 0;
}
ctx.u_ptr = u_ptr;
ctx.callback = callback;
rc = cstuff_file_get_lines(file, config_get_line, (void *)&ctx);
if (rc) {
fprintf(stderr, "cfg: get lines failed %d (%s)\n", rc, strerror(errno));
}
if (ctx.path.key)
free(ctx.path.key);
return rc;

19
config.h
View File

@ -13,6 +13,9 @@
* @see https://lowenware.com/
*/
#include "retcode.h"
#ifndef CSTUFF_CONFIG_H_6207A85E_26F1_4B64_818F_92C6286FC5F0
#define CSTUFF_CONFIG_H_6207A85E_26F1_4B64_818F_92C6286FC5F0
@ -28,30 +31,30 @@ typedef enum {
} CStuffConfigEvent;
struct cstuff_config_node {
const char *node;
int node_len;
const char *name;
int name_len;
};
struct cstuff_config_pair {
const char *key;
const char *value;
const char *val;
int key_len;
int value_len;
int val_len;
};
struct cstuff_config_error {
const char *line_text;
const char *err_text;
const char *line_txt;
const char *err_txt;
int char_num;
};
struct cstuff_config {
CStuffConfigEvent evt;
int line_number;
int line_num;
union {
struct cstuff_config_node node;
struct cstuff_config_pair pair;
struct cstuff_config_ierror error;
struct cstuff_config_error error;
} data;
};

4
file.c
View File

@ -86,7 +86,7 @@ cstuff_file_move(const char *src, const char *dest)
CStuffRetcode
cstuff_file_get_lines(const char *src, CStuffFileGetLine get_line)
cstuff_file_get_lines(const char *src, CStuffFileGetLine get_line, void *ctx)
{
FILE *f = NULL;
size_t sz = 256;
@ -101,7 +101,7 @@ cstuff_file_get_lines(const char *src, CStuffFileGetLine get_line)
goto e_syscall;
while ((rs = getdelim(&line, &sz, '\n', f)) != -1) {
if (!get_line(line, rc)) {
if (!get_line(line, rs, ctx)) {
continue;
} else {
goto e_input;

1
file.h
View File

@ -17,6 +17,7 @@
#define CSTUFF_FILE_H_3C3D5EDC_A624_4550_98A4_29AD5A41301D
#include <stdbool.h>
#include <sys/types.h>
#include "retcode.h"

3
retcode.h
View File

@ -17,7 +17,8 @@
#define CSTUFF_RETCODE_H_CBA3C16B_88D6_49F4_966D_DBDA727583FE
typedef enum {
CSTUFF_MALLOC_ERROR = -2
CSTUFF_INPUT_ERROR = -3
, CSTUFF_MALLOC_ERROR = -2
, CSTUFF_SYSCALL_ERROR = -1
, CSTUFF_SUCCESS = 0
, CSTUFF_IDLE = 1