/* [<][>][^][v][top][bottom][index][help] */
DEFINITIONS
This source file includes following definitions.
- ZEND_GET_MODULE
- PHP_RSHUTDOWN_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- _readline_command_generator
- _readline_string_zval
- _readline_long_zval
- _readline_completion_cb
- PHP_FUNCTION
- php_rl_callback_handler
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
- PHP_FUNCTION
/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2008 The PHP Group |
+----------------------------------------------------------------------+
| This source file is subject to version 3.01 of the PHP license, |
| that is bundled with this package in the file LICENSE, and is |
| available through the world-wide-web at the following url: |
| http://www.php.net/license/3_01.txt |
| If you did not receive a copy of the PHP license and are unable to |
| obtain it through the world-wide-web, please send a note to |
| license@php.net so we can mail you a copy immediately. |
+----------------------------------------------------------------------+
| Author: Thies C. Arntzen <thies@thieso.net> |
+----------------------------------------------------------------------+
*/
/* $Id: readline.c,v 1.42.2.3.2.4 2007/12/31 07:20:10 sebastian Exp $ */
/* {{{ includes & prototypes */
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "php.h"
#include "php_readline.h"
#if HAVE_LIBREADLINE || HAVE_LIBEDIT
#ifndef HAVE_RL_COMPLETION_MATCHES
#define rl_completion_matches completion_matches
#endif
#include <readline/readline.h>
#ifndef HAVE_LIBEDIT
#include <readline/history.h>
#endif
PHP_FUNCTION(readline);
PHP_FUNCTION(readline_add_history);
PHP_FUNCTION(readline_info);
PHP_FUNCTION(readline_clear_history);
#ifndef HAVE_LIBEDIT
PHP_FUNCTION(readline_list_history);
#endif
PHP_FUNCTION(readline_read_history);
PHP_FUNCTION(readline_write_history);
PHP_FUNCTION(readline_completion_function);
#if HAVE_RL_CALLBACK_READ_CHAR
PHP_FUNCTION(readline_callback_handler_install);
PHP_FUNCTION(readline_callback_read_char);
PHP_FUNCTION(readline_callback_handler_remove);
PHP_FUNCTION(readline_redisplay);
PHP_FUNCTION(readline_on_new_line);
static zval *_prepped_callback = NULL;
#endif
static zval *_readline_completion = NULL;
static zval _readline_array;
PHP_MINIT_FUNCTION(readline);
PHP_RSHUTDOWN_FUNCTION(readline);
/* }}} */
/* {{{ module stuff */
static zend_function_entry php_readline_functions[] = {
PHP_FE(readline, NULL)
PHP_FE(readline_info, NULL)
PHP_FE(readline_add_history, NULL)
PHP_FE(readline_clear_history, NULL)
#ifndef HAVE_LIBEDIT
PHP_FE(readline_list_history, NULL)
#endif
PHP_FE(readline_read_history, NULL)
PHP_FE(readline_write_history, NULL)
PHP_FE(readline_completion_function,NULL)
#if HAVE_RL_CALLBACK_READ_CHAR
PHP_FE(readline_callback_handler_install, NULL)
PHP_FE(readline_callback_read_char, NULL)
PHP_FE(readline_callback_handler_remove, NULL)
PHP_FE(readline_redisplay, NULL)
PHP_FE(readline_on_new_line, NULL)
#endif
{NULL, NULL, NULL}
};
zend_module_entry readline_module_entry = {
STANDARD_MODULE_HEADER,
"readline",
php_readline_functions,
PHP_MINIT(readline),
NULL,
NULL,
PHP_RSHUTDOWN(readline),
NULL,
NO_VERSION_YET,
STANDARD_MODULE_PROPERTIES
};
#ifdef COMPILE_DL_READLINE
ZEND_GET_MODULE(readline)
#endif
PHP_MINIT_FUNCTION(readline)
{
using_history();
return SUCCESS;
}
PHP_RSHUTDOWN_FUNCTION(readline)
{
if (_readline_completion)
FREE_ZVAL(_readline_completion);
#if HAVE_RL_CALLBACK_READ_CHAR
if (_prepped_callback) {
rl_callback_handler_remove();
FREE_ZVAL(_prepped_callback);
_prepped_callback = 0;
}
#endif
return SUCCESS;
}
/* }}} */
/* {{{ proto string readline([string prompt])
Reads a line */
PHP_FUNCTION(readline)
{
char *prompt = NULL;
int prompt_len;
char *result;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s!", &prompt, &prompt_len)) {
RETURN_FALSE;
}
result = readline(prompt);
if (! result) {
RETURN_FALSE;
} else {
RETVAL_STRING(result,1);
free(result);
}
}
/* }}} */
/* {{{ proto mixed readline_info([string varname] [, string newvalue])
Gets/sets various internal readline variables. */
#define SAFE_STRING(s) ((s)?(char*)(s):"")
PHP_FUNCTION(readline_info)
{
zval **what;
zval **value;
int oldval;
char *oldstr;
int ac = ZEND_NUM_ARGS();
if (ac < 0 || ac > 2 || zend_get_parameters_ex(ac, &what, &value) == FAILURE) {
WRONG_PARAM_COUNT;
}
if (ac == 0) {
array_init(return_value);
add_assoc_string(return_value,"line_buffer",SAFE_STRING(rl_line_buffer),1);
add_assoc_long(return_value,"point",rl_point);
add_assoc_long(return_value,"end",rl_end);
#ifdef HAVE_LIBREADLINE
add_assoc_long(return_value,"mark",rl_mark);
add_assoc_long(return_value,"done",rl_done);
add_assoc_long(return_value,"pending_input",rl_pending_input);
add_assoc_string(return_value,"prompt",SAFE_STRING(rl_prompt),1);
add_assoc_string(return_value,"terminal_name",(char *)SAFE_STRING(rl_terminal_name),1);
#endif
#if HAVE_ERASE_EMPTY_LINE
add_assoc_long(return_value,"erase_empty_line",rl_erase_empty_line);
#endif
add_assoc_string(return_value,"library_version",(char *)SAFE_STRING(rl_library_version),1);
add_assoc_string(return_value,"readline_name",(char *)SAFE_STRING(rl_readline_name),1);
} else {
convert_to_string_ex(what);
if (! strcasecmp(Z_STRVAL_PP(what),"line_buffer")) {
oldstr = rl_line_buffer;
if (ac == 2) {
/* XXX if (rl_line_buffer) free(rl_line_buffer); */
convert_to_string_ex(value);
rl_line_buffer = strdup(Z_STRVAL_PP(value));
}
RETVAL_STRING(SAFE_STRING(oldstr),1);
} else if (! strcasecmp(Z_STRVAL_PP(what),"point")) {
RETVAL_LONG(rl_point);
} else if (! strcasecmp(Z_STRVAL_PP(what),"end")) {
RETVAL_LONG(rl_end);
#ifdef HAVE_LIBREADLINE
} else if (! strcasecmp(Z_STRVAL_PP(what),"mark")) {
RETVAL_LONG(rl_mark);
} else if (! strcasecmp(Z_STRVAL_PP(what),"done")) {
oldval = rl_done;
if (ac == 2) {
convert_to_long_ex(value);
rl_done = Z_LVAL_PP(value);
}
RETVAL_LONG(oldval);
} else if (! strcasecmp(Z_STRVAL_PP(what),"pending_input")) {
oldval = rl_pending_input;
if (ac == 2) {
convert_to_string_ex(value);
rl_pending_input = Z_STRVAL_PP(value)[0];
}
RETVAL_LONG(oldval);
} else if (! strcasecmp(Z_STRVAL_PP(what),"prompt")) {
RETVAL_STRING(SAFE_STRING(rl_prompt),1);
} else if (! strcasecmp(Z_STRVAL_PP(what),"terminal_name")) {
RETVAL_STRING((char *)SAFE_STRING(rl_terminal_name),1);
#endif
#if HAVE_ERASE_EMPTY_LINE
} else if (! strcasecmp(Z_STRVAL_PP(what),"erase_empty_line")) {
oldval = rl_erase_empty_line;
if (ac == 2) {
convert_to_long_ex(value);
rl_erase_empty_line = Z_LVAL_PP(value);
}
RETVAL_LONG(oldval);
#endif
} else if (! strcasecmp(Z_STRVAL_PP(what),"library_version")) {
RETVAL_STRING((char *)SAFE_STRING(rl_library_version),1);
} else if (! strcasecmp(Z_STRVAL_PP(what),"readline_name")) {
oldstr = (char*)rl_readline_name;
if (ac == 2) {
/* XXX if (rl_readline_name) free(rl_readline_name); */
convert_to_string_ex(value);
rl_readline_name = strdup(Z_STRVAL_PP(value));;
}
RETVAL_STRING(SAFE_STRING(oldstr),1);
}
}
}
/* }}} */
/* {{{ proto bool readline_add_history([string prompt])
Adds a line to the history */
PHP_FUNCTION(readline_add_history)
{
zval **arg;
int ac = ZEND_NUM_ARGS();
if (ac != 1 || zend_get_parameters_ex(ac, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
convert_to_string_ex(arg);
add_history(Z_STRVAL_PP(arg));
RETURN_TRUE;
}
/* }}} */
/* {{{ proto bool readline_clear_history(void)
Clears the history */
PHP_FUNCTION(readline_clear_history)
{
int ac = ZEND_NUM_ARGS();
if (ac != 0) {
WRONG_PARAM_COUNT;
}
clear_history();
RETURN_TRUE;
}
/* }}} */
/* {{{ proto array readline_list_history(void)
Lists the history */
#ifndef HAVE_LIBEDIT
PHP_FUNCTION(readline_list_history)
{
HIST_ENTRY **history;
int ac = ZEND_NUM_ARGS();
if (ac) {
WRONG_PARAM_COUNT;
}
history = history_list();
array_init(return_value);
if (history) {
int i;
for (i = 0; history[i]; i++) {
add_next_index_string(return_value,history[i]->line,1);
}
}
}
#endif
/* }}} */
/* {{{ proto bool readline_read_history([string filename] [, int from] [,int to])
Reads the history */
PHP_FUNCTION(readline_read_history)
{
zval **arg;
char *filename = NULL;
int ac = ZEND_NUM_ARGS();
if (ac < 0 || ac > 1 || zend_get_parameters_ex(ac, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
/* XXX from & to NYI */
if (ac == 1) {
convert_to_string_ex(arg);
filename = Z_STRVAL_PP(arg);
}
if (read_history(filename)) {
RETURN_FALSE;
} else {
RETURN_TRUE;
}
}
/* }}} */
/* {{{ proto bool readline_write_history([string filename])
Writes the history */
PHP_FUNCTION(readline_write_history)
{
zval **arg;
char *filename = NULL;
int ac = ZEND_NUM_ARGS();
if (ac < 0 || ac > 1 || zend_get_parameters_ex(ac, &arg) == FAILURE) {
WRONG_PARAM_COUNT;
}
if (ac == 1) {
convert_to_string_ex(arg);
filename = Z_STRVAL_PP(arg);
}
if (write_history(filename)) {
RETURN_FALSE;
} else {
RETURN_TRUE;
}
}
/* }}} */
/* {{{ proto bool readline_completion_function(string funcname)
Readline completion function? */
static char *_readline_command_generator(const char *text, int state)
{
HashTable *myht = Z_ARRVAL(_readline_array);
zval **entry;
if (! state) {
zend_hash_internal_pointer_reset(myht);
}
while (zend_hash_get_current_data(myht, (void **)&entry) == SUCCESS) {
zend_hash_move_forward(myht);
convert_to_string_ex(entry);
if (strncmp (Z_STRVAL_PP(entry), text, strlen(text)) == 0) {
return (strdup(Z_STRVAL_PP(entry)));
}
}
return NULL;
}
static zval *_readline_string_zval(const char *str)
{
zval *ret;
int len;
MAKE_STD_ZVAL(ret);
if (str) {
len = strlen(str);
ZVAL_STRINGL(ret, (char*)str, len, 1);
} else {
ZVAL_NULL(ret);
}
return ret;
}
static zval *_readline_long_zval(long l)
{
zval *ret;
MAKE_STD_ZVAL(ret);
Z_TYPE_P(ret) = IS_LONG;
Z_LVAL_P(ret) = l;
return ret;
}
static char **_readline_completion_cb(const char *text, int start, int end)
{
zval *params[3];
int i;
char **matches = NULL;
TSRMLS_FETCH();
params[0]=_readline_string_zval(text);
params[1]=_readline_long_zval(start);
params[2]=_readline_long_zval(end);
if (call_user_function(CG(function_table), NULL, _readline_completion, &_readline_array, 3, params TSRMLS_CC) == SUCCESS) {
if (Z_TYPE(_readline_array) == IS_ARRAY) {
if (zend_hash_num_elements(Z_ARRVAL(_readline_array))) {
matches = rl_completion_matches(text,_readline_command_generator);
} else {
matches = malloc(sizeof(char *) * 2);
matches[0] = strdup("");
matches[1] = '\0';
}
}
}
for (i = 0; i < 3; i++) {
zval_ptr_dtor(¶ms[i]);
}
zval_dtor(&_readline_array);
return matches;
}
PHP_FUNCTION(readline_completion_function)
{
zval *arg = NULL;
char *name = NULL;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z", &arg)) {
RETURN_FALSE;
}
if (!zend_is_callable(arg, 0, &name)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s is not callable", name);
efree(name);
RETURN_FALSE;
}
if (_readline_completion)
FREE_ZVAL(_readline_completion);
MAKE_STD_ZVAL(_readline_completion);
*_readline_completion = *arg;
zval_copy_ctor(_readline_completion);
rl_attempted_completion_function = _readline_completion_cb;
RETURN_TRUE;
}
/* }}} */
#if HAVE_RL_CALLBACK_READ_CHAR
static void php_rl_callback_handler(char *the_line)
{
zval *params[1];
zval dummy;
TSRMLS_FETCH();
ZVAL_NULL(&dummy);
params[0] = _readline_string_zval(the_line);
call_user_function(CG(function_table), NULL, _prepped_callback, &dummy, 1, params TSRMLS_CC);
zval_ptr_dtor(¶ms[0]);
zval_dtor(&dummy);
}
/* {{{ proto void readline_callback_handler_install(string prompt, mixed callback)
Initializes the readline callback interface and terminal, prints the prompt and returns immediately */
PHP_FUNCTION(readline_callback_handler_install)
{
zval *callback;
char *name = NULL;
char *prompt;
int prompt_len;
if (FAILURE == zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "sz", &prompt, &prompt_len, &callback)) {
return;
}
if (!zend_is_callable(callback, 0, &name)) {
php_error_docref(NULL TSRMLS_CC, E_WARNING, "%s is not callable", name);
RETURN_FALSE;
}
if (_prepped_callback) {
rl_callback_handler_remove();
FREE_ZVAL(_prepped_callback);
}
MAKE_STD_ZVAL(_prepped_callback);
*_prepped_callback = *callback;
zval_copy_ctor(_prepped_callback);
rl_callback_handler_install(prompt, php_rl_callback_handler);
RETURN_TRUE;
}
/* }}} */
/* {{{ proto void readline_callback_read_char()
Informs the readline callback interface that a character is ready for input */
PHP_FUNCTION(readline_callback_read_char)
{
if (_prepped_callback) {
rl_callback_read_char();
}
}
/* }}} */
/* {{{ proto bool readline_callback_handler_remove()
Removes a previously installed callback handler and restores terminal settings */
PHP_FUNCTION(readline_callback_handler_remove)
{
if (_prepped_callback) {
rl_callback_handler_remove();
FREE_ZVAL(_prepped_callback);
_prepped_callback = 0;
RETURN_TRUE;
}
RETURN_FALSE;
}
/* }}} */
/* {{{ proto void readline_redisplay(void)
Ask readline to redraw the display */
PHP_FUNCTION(readline_redisplay)
{
rl_redisplay();
}
/* }}} */
/* {{{ proto void readline_on_new_line(void)
Inform readline that the cursor has moved to a new line */
PHP_FUNCTION(readline_on_new_line)
{
rl_on_new_line();
}
/* }}} */
#endif
#endif /* HAVE_LIBREADLINE */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
*/