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vars.c
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vars.c
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#include "shell.h"
/**
* is_chain -|t|e|s|t|i|f|c|u|r|r|e|n|t|c|h|a|r||i|n|b|
* u|f|f|e|r|i|s|a|c|h|a|i|n|d|e|l|i|m|e|t|e|r|
* @riinfovi:|t|h|e|p|a|r|a|m|e|t|e|r|s|t|r|u|c|t|
* @ribufvi:|t|h|e|c|h|a|r|b|u|f|f|e|r|
* @ripvi:|a|d|d|r|e|s|s|o|f|c|u|r|r|e|n|t|p|o|s|i|t|i|o|n|i|n|b|u|f|
*
* Return:|1|i|f|c|h|a|i|n|d|e|l|i|m|e|t|e|r|,|0|o|t|h|e|r|w|i|s|e|
*/
int is_chain(riinfo_tvi *riinfovi, char *ribufvi, size_t *ripvi)
{
size_t rijvi = *ripvi;
if (ribufvi[rijvi] == '|' && ribufvi[rijvi + 1] == '|')
{
ribufvi[rijvi] = 0;
rijvi++;
riinfovi->ricmd_buf_typevi = RICMD_ORVI;
}
else if (ribufvi[rijvi] == '&' && ribufvi[rijvi + 1] == '&')
{
ribufvi[rijvi] = 0;
rijvi++;
riinfovi->ricmd_buf_typevi = RICMD_ANDVI;
}
else if (ribufvi[rijvi] == ';') /*|f|o|u|n|d||e|n|d|o|f|this|co|m|ma|n|d|*/
{
ribufvi[rijvi] = 0; /*|r|e|p|l|a|c|e|s|e|m|i|c|o|l|o|n|w|i|t|h|n|u|l|l| */
riinfovi->ricmd_buf_typevi = RICMD_CHAINVI;
}
else
return (0);
*ripvi = rijvi;
return (1);
}
/**
* check_chain -|c|h|e|c|k|s|w|e|s|h|o|u|l|d|continue
* |c|h|a|i|n|i|n|g|b|a|s|e|d|o|n|l|a|s|t|s|t|a|t|u|s
* @riinfovi:|t|h|e|p|a|r|a|m||t|e|r|s|t|r|u|c|t|
* @ribufvi:|t|h|e|c|h|a|r|b|u|f|f|e|r|
* @ripvi:|a|d|d|r|e|s|s|o|f|c|u|r|r|e|n|t|p|o|s|i|t|i|o|n|i|n|b|u|f|
* @riivi: |s|t|a|r|t|i|n|g|p|o|s|i|t|i|o|n|i|n|b|u|f|
* @rilenvi:|l|e|n|g|t|h|o|f|b|u|f|
*
* Return: Void
*/
void check_chain(riinfo_tvi *riinfovi, char *ribufvi, size_t *ripvi,
size_t riivi, size_t rilenvi)
{
size_t rijvi = *ripvi;
if (riinfovi->ricmd_buf_typevi == RICMD_ANDVI)
{
if (riinfovi->ristatusvi)
{
ribufvi[riivi] = 0;
rijvi = rilenvi;
}
}
if (riinfovi->ricmd_buf_typevi == RICMD_ORVI)
{
if (!riinfovi->ristatusvi)
{
ribufvi[riivi] = 0;
rijvi = rilenvi;
}
}
*ripvi = rijvi;
}
/**
* replace_alias -|r|e|p|l|a|c|e|s|a|n
* |a|l|i|a|s|e|s|i|n|t|h|e|t|o|k|e|n|i|z|e|d|s|t|r|i|n|g|
* @riinfovi:|t|h|e|p|a|r|a|m|e|t|e|r|s|t|r|u|c|t|
*
* Return: 1 |i|f|r|e|p|l|a|c|e|d|,| 0 |o|t|h|e|r|w|i|s|e|
*/
int replace_alias(riinfo_tvi *riinfovi)
{
int riivi;
rilist_tvi *rinodevi;
char *ripvi;
for (riivi = 0; riivi < 10; riivi++)
{
rinodevi = node_starts_with(riinfovi->rialiasvi, riinfovi->riargvvi[0], '=');
if (!rinodevi)
return (0);
free(riinfovi->riargvvi[0]);
ripvi = _strchr(rinodevi->ristrvi, '=');
if (!ripvi)
return (0);
ripvi = _strdup(ripvi + 1);
if (!ripvi)
return (0);
riinfovi->riargvvi[0] = ripvi;
}
return (1);
}
/**
* replace_vars - |r|e|p|l|a|c|e|s|v|a|r|s
* |i|n|t|h|e|t|o|k|e|n|i|z|e|d|s|t|r|i|n|g|
* @riinfovi:|t|h|e|p|a|r|a|m|e|t|e|r|s|t|r|u|c|t|
*
* Return: 1 |i|f|r|e|p|l|a|c|e|d|,| 0 |o|t|h|e|r|w|i|s|e|
*/
int replace_vars(riinfo_tvi *riinfovi)
{
int riivi = 0;
rilist_tvi *rinodevi;
for (riivi = 0; riinfovi->riargvvi[riivi]; riivi++)
{
if (riinfovi->riargvvi[riivi][0] != '$' || !riinfovi->riargvvi[riivi][1])
continue;
if (!_strcmp(riinfovi->riargvvi[riivi], "$?"))
{
replace_string(&(riinfovi->riargvvi[riivi]),
_strdup(convert_number(riinfovi->ristatusvi, 10, 0)));
continue;
}
if (!_strcmp(riinfovi->riargvvi[riivi], "$$"))
{
replace_string(&(riinfovi->riargvvi[riivi]),
_strdup(convert_number(getpid(), 10, 0)));
continue;
}
rinodevi = node_starts_with(riinfovi->rienvvi,
&riinfovi->riargvvi[riivi][1], '=');
if (rinodevi)
{
replace_string(&(riinfovi->riargvvi[riivi]),
_strdup(_strchr(rinodevi->ristrvi, '=') + 1));
continue;
}
replace_string(&riinfovi->riargvvi[riivi], _strdup(""));
}
return (0);
}
/**
* replace_string -|r|e|p|l|a|c|e|s|s|t|r|i|n|g
* @rioldvi:|a|d|d|r|e|s|s|o|f||o|l|d||s|t|r|i|n|g|
* @rinewvi:|n|e|w|s|t|r|i|n|g|
*
* Return: 1 |i|f|r|e|p|l|a|c|e|d|,| 0 |o|t|h|e|r|w|i|s|e|
*/
int replace_string(char **rioldvi, char *rinewvi)
{
free(*rioldvi);
*rioldvi = rinewvi;
return (1);
}