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core: add command /print

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This commit is contained in:
Sebastien Helleu
2014-01-19 23:29:00 +01:00
parent 49f4c8e9ef
commit 4da8fcf34d
23 changed files with 1145 additions and 67 deletions
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src/core/wee-string.c
+110 -52
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@@ -54,6 +54,11 @@
#include "../plugins/plugin.h"
#define IS_OCTAL_DIGIT(c) ((c >= '0') && (c <= '7'))
#define HEX2DEC(c) (((c >= 'a') && (c <= 'f')) ? c - 'a' + 10 : \
((c >= 'A') && (c <= 'F')) ? c - 'A' + 10 : \
c - '0')
typedef uint32_t string_shared_count_t;
struct t_hashtable *string_hashtable_shared = NULL;
@@ -623,74 +628,127 @@ string_strip (const char *string, int left, int right, const char *chars)
}
/*
* Converts hex chars (\x??) to value.
* Converts escaped chars to their value.
*
* Following escaped chars are supported:
* \" double quote
* \\ backslash
* \a alert (BEL)
* \b backspace
* \e escape
* \f form feed
* \n new line
* \r carriage return
* \t horizontal tab
* \v vertical tab
* \0ooo octal value (ooo is 0 to 3 digits)
* \xhh hexadecimal value (hh is 1 to 2 digits)
*
* Note: result must be freed after use.
*/
char *
string_convert_hex_chars (const char *string)
string_convert_escaped_chars (const char *string)
{
char *output, hex_str[8], *error;
int pos_output;
long number;
const unsigned char *ptr_string;
char *output;
int pos_output, i, value;
/* the output length is always <= to string length */
output = malloc (strlen (string) + 1);
if (output)
if (!output)
return NULL;
pos_output = 0;
ptr_string = (const unsigned char *)string;
while (ptr_string && ptr_string[0])
{
pos_output = 0;
while (string && string[0])
if (ptr_string[0] == '\\')
{
if (string[0] == '\\')
ptr_string++;
switch (ptr_string[0])
{
string++;
switch (string[0])
{
case '\\':
output[pos_output++] = '\\';
string++;
break;
case 'x':
case 'X':
if (isxdigit ((unsigned char)string[1])
&& isxdigit ((unsigned char)string[2]))
case '"':
output[pos_output++] = '"';
ptr_string++;
break;
case '\\':
output[pos_output++] = '\\';
ptr_string++;
break;
case 'a': /* alert */
output[pos_output++] = 7;
ptr_string++;
break;
case 'b': /* backspace */
output[pos_output++] = 8;
ptr_string++;
break;
case 'e': /* escape */
output[pos_output++] = 27;
ptr_string++;
break;
case 'f': /* form feed */
output[pos_output++] = 12;
ptr_string++;
break;
case 'n': /* new line */
output[pos_output++] = 10;
ptr_string++;
break;
case 'r': /* carriage return */
output[pos_output++] = 13;
ptr_string++;
break;
case 't': /* horizontal tab */
output[pos_output++] = 9;
ptr_string++;
break;
case 'v': /* vertical tab */
output[pos_output++] = 11;
ptr_string++;
break;
case '0': /* octal value (0 to 3 digits expected) */
value = 0;
for (i = 0; (i < 3) && IS_OCTAL_DIGIT(ptr_string[i + 1]); i++)
{
value = (value * 8) + (ptr_string[i + 1] - '0');
}
output[pos_output++] = value;
ptr_string += 1 + i;
break;
case 'x': /* hexadecimal value (1 to 2 digits expected) */
case 'X':
if (isxdigit (ptr_string[1]))
{
value = 0;
for (i = 0; (i < 2) && isxdigit (ptr_string[i + 1]); i++)
{
snprintf (hex_str, sizeof (hex_str),
"0x%c%c", string[1], string[2]);
number = strtol (hex_str, &error, 16);
if (error && !error[0])
{
output[pos_output++] = number;
string += 3;
}
else
{
output[pos_output++] = '\\';
output[pos_output++] = string[0];
string++;
}
value = (value * 16) + HEX2DEC(ptr_string[i + 1]);
}
else
{
output[pos_output++] = string[0];
string++;
}
break;
default:
output[pos_output++] = '\\';
output[pos_output++] = string[0];
string++;
break;
}
}
else
{
output[pos_output++] = string[0];
string++;
output[pos_output++] = value;
ptr_string += 1 + i;
}
else
{
output[pos_output++] = ptr_string[0];
ptr_string++;
}
break;
default:
output[pos_output++] = '\\';
output[pos_output++] = ptr_string[0];
ptr_string++;
break;
}
}
output[pos_output] = '\0';
else
{
output[pos_output++] = ptr_string[0];
ptr_string++;
}
}
output[pos_output] = '\0';
return output;
}