mirror of
https://github.com/php/php-src.git
synced 2024-10-21 00:12:34 +00:00
450 lines
11 KiB
C
450 lines
11 KiB
C
/*
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+----------------------------------------------------------------------+
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| PHP Version 5 |
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+----------------------------------------------------------------------+
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| Copyright (c) 1997-2006 The PHP Group |
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+----------------------------------------------------------------------+
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| This source file is subject to version 3.01 of the PHP license, |
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| that is bundled with this package in the file LICENSE, and is |
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| available through the world-wide-web at the following url: |
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| http://www.php.net/license/3_01.txt |
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| If you did not receive a copy of the PHP license and are unable to |
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| obtain it through the world-wide-web, please send a note to |
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| license@php.net so we can mail you a copy immediately. |
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+----------------------------------------------------------------------+
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| Author: Marcus Boerger <helly@php.net> |
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| Johannes Schlueter <johannes@php.net> |
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+----------------------------------------------------------------------+
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*/
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/* $Id$ */
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#include "php.h"
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#if (HAVE_LIBREADLINE || HAVE_LIBEDIT) && !defined(COMPILE_DL_READLINE)
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#ifndef HAVE_RL_COMPLETION_MATCHES
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#define rl_completion_matches completion_matches
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#endif
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#include "php_globals.h"
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#include "php_variables.h"
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#include "zend_hash.h"
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#include "zend_modules.h"
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#include "SAPI.h"
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#if HAVE_SETLOCALE
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#include <locale.h>
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#endif
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#include "zend.h"
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#include "zend_extensions.h"
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#include "php_ini.h"
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#include "php_globals.h"
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#include "php_main.h"
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#include "fopen_wrappers.h"
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#include "ext/standard/php_standard.h"
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#ifdef __riscos__
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#include <unixlib/local.h>
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#endif
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#include <readline/readline.h>
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#if !HAVE_LIBEDIT
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#include <readline/history.h>
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#endif
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#include "zend_compile.h"
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#include "zend_execute.h"
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#include "zend_highlight.h"
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#include "zend_indent.h"
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/* {{{ cli_is_valid_code
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*/
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typedef enum {
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body,
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sstring,
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dstring,
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sstring_esc,
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dstring_esc,
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comment_line,
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comment_block,
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heredoc_start,
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heredoc,
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outside,
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} php_code_type;
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int cli_is_valid_code(char *code, int len, char **prompt TSRMLS_DC)
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{
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int valid_end = 1, last_valid_end;
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int brackets_count = 0;
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int brace_count = 0;
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int i;
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php_code_type code_type = body;
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char *heredoc_tag;
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int heredoc_len;
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for (i = 0; i < len; ++i) {
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switch(code_type) {
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default:
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switch(code[i]) {
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case '{':
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brackets_count++;
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valid_end = 0;
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break;
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case '}':
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if (brackets_count > 0) {
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brackets_count--;
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}
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valid_end = brackets_count ? 0 : 1;
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break;
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case '(':
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brace_count++;
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valid_end = 0;
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break;
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case ')':
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if (brace_count > 0) {
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brace_count--;
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}
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valid_end = 0;
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break;
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case ';':
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valid_end = brace_count == 0 && brackets_count == 0;
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break;
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case ' ':
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case '\r':
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case '\n':
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case '\t':
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break;
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case '\'':
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code_type = sstring;
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break;
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case '"':
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code_type = dstring;
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break;
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case '#':
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code_type = comment_line;
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break;
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case '/':
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if (code[i+1] == '/') {
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i++;
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code_type = comment_line;
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break;
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}
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if (code[i+1] == '*') {
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last_valid_end = valid_end;
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valid_end = 0;
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code_type = comment_block;
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i++;
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break;
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}
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valid_end = 0;
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break;
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case '%':
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if (!CG(asp_tags)) {
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valid_end = 0;
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break;
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}
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/* no break */
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case '?':
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if (code[i+1] == '>') {
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i++;
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code_type = outside;
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break;
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}
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valid_end = 0;
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break;
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case '<':
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valid_end = 0;
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if (i + 2 < len && code[i+1] == '<' && code[i+2] == '<') {
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i += 2;
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code_type = heredoc_start;
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heredoc_len = 0;
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}
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break;
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default:
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valid_end = 0;
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break;
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}
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break;
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case sstring:
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if (code[i] == '\\') {
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code_type = sstring_esc;
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} else {
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if (code[i] == '\'') {
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code_type = body;
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}
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}
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break;
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case sstring_esc:
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code_type = sstring;
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break;
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case dstring:
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if (code[i] == '\\') {
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code_type = dstring_esc;
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} else {
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if (code[i] == '"') {
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code_type = body;
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}
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}
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break;
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case dstring_esc:
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code_type = dstring;
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break;
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case comment_line:
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if (code[i] == '\n') {
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code_type = body;
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}
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break;
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case comment_block:
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if (code[i-1] == '*' && code[i] == '/') {
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code_type = body;
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valid_end = last_valid_end;
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}
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break;
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case heredoc_start:
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switch(code[i]) {
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case ' ':
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case '\t':
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break;
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case '\r':
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case '\n':
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code_type = heredoc;
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break;
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default:
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if (!heredoc_len) {
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heredoc_tag = code+i;
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}
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heredoc_len++;
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break;
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}
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break;
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case heredoc:
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if (code[i - (heredoc_len + 1)] == '\n' && !strncmp(code + i - heredoc_len, heredoc_tag, heredoc_len) && code[i] == '\n') {
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code_type = body;
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} else if (code[i - (heredoc_len + 2)] == '\n' && !strncmp(code + i - heredoc_len - 1, heredoc_tag, heredoc_len) && code[i-1] == ';' && code[i] == '\n') {
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code_type = body;
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valid_end = 1;
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}
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break;
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case outside:
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if ((CG(short_tags) && !strncmp(code+i-1, "<?", 2))
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|| (CG(asp_tags) && !strncmp(code+i-1, "<%", 2))
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|| (i > 3 && !strncmp(code+i-4, "<?php", 5))
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) {
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code_type = body;
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}
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break;
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}
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}
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switch (code_type) {
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default:
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if (brace_count) {
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*prompt = "php ( ";
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} else if (brackets_count) {
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*prompt = "php { ";
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} else {
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*prompt = "php > ";
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}
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break;
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case sstring:
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case sstring_esc:
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*prompt = "php ' ";
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break;
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case dstring:
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case dstring_esc:
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*prompt = "php \" ";
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break;
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case comment_block:
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*prompt = "/* > ";
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break;
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case heredoc:
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*prompt = "<<< > ";
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break;
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case outside:
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*prompt = " > ";
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break;
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}
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if (!valid_end || brackets_count) {
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return 0;
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} else {
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return 1;
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}
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}
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/* }}} */
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static char *cli_completion_generator_ht(const char *text, int textlen, int *state, HashTable *ht, void **pData TSRMLS_DC) /* {{{ */
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{
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char *name;
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ulong number;
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if (!(*state % 2)) {
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zend_hash_internal_pointer_reset(ht);
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(*state)++;
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}
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while(zend_hash_has_more_elements(ht) == SUCCESS) {
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zend_hash_get_current_key(ht, &name, &number, 0);
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if (!textlen || !strncmp(name, text, textlen)) {
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if (pData) {
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zend_hash_get_current_data(ht, pData);
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}
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zend_hash_move_forward(ht);
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return name;
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}
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if (zend_hash_move_forward(ht) == FAILURE) {
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break;
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}
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}
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(*state)++;
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return NULL;
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} /* }}} */
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static char *cli_completion_generator_var(const char *text, int textlen, int *state TSRMLS_DC) /* {{{ */
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{
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char *retval, *tmp;
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tmp = retval = cli_completion_generator_ht(text + 1, textlen - 1, state, EG(active_symbol_table), NULL TSRMLS_CC);
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if (retval) {
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retval = malloc(strlen(tmp) + 2);
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retval[0] = '$';
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strcpy(&retval[1], tmp);
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rl_completion_append_character = '\0';
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}
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return retval;
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} /* }}} */
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static char *cli_completion_generator_func(const char *text, int textlen, int *state, HashTable *ht TSRMLS_DC) /* {{{ */
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{
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zend_function *func;
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char *retval = cli_completion_generator_ht(text, textlen, state, ht, (void**)&func TSRMLS_CC);
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if (retval) {
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rl_completion_append_character = '(';
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retval = strdup(func->common.function_name);
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}
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return retval;
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} /* }}} */
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static char *cli_completion_generator_class(const char *text, int textlen, int *state TSRMLS_DC) /* {{{ */
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{
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zend_class_entry **pce;
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char *retval = cli_completion_generator_ht(text, textlen, state, EG(class_table), (void**)&pce TSRMLS_CC);
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if (retval) {
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rl_completion_append_character = '\0';
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retval = strdup((*pce)->name);
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}
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return retval;
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} /* }}} */
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static char *cli_completion_generator_define(const char *text, int textlen, int *state, HashTable *ht TSRMLS_DC) /* {{{ */
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{
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zend_class_entry **pce;
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char *retval = cli_completion_generator_ht(text, textlen, state, ht, (void**)&pce TSRMLS_CC);
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if (retval) {
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rl_completion_append_character = '\0';
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retval = strdup(retval);
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}
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return retval;
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} /* }}} */
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static int cli_completion_state;
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static char *cli_completion_generator(const char *text, int index) /* {{{ */
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{
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/*
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TODO:
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- constants
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- maybe array keys
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- language constructs and other things outside a hashtable (echo, try, function, class, ...)
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- object/class members
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- future: respect scope ("php > function foo() { $[tab]" should only expand to local variables...)
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*/
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char *retval;
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int textlen = strlen(text);
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TSRMLS_FETCH();
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if (!index) {
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cli_completion_state = 0;
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}
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if (text[0] == '$') {
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retval = cli_completion_generator_var(text, textlen, &cli_completion_state TSRMLS_CC);
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} else {
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char *lc_text, *class_name, *class_name_end;
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int class_name_len;
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zend_class_entry **pce = NULL;
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class_name_end = strstr(text, "::");
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if (class_name_end) {
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class_name_len = class_name_end - text;
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class_name = zend_str_tolower_dup(text, class_name_len);
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class_name[class_name_len] = '\0'; /* not done automatically */
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if (zend_lookup_class(class_name, class_name_len, &pce TSRMLS_CC)==FAILURE) {
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efree(class_name);
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return NULL;
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}
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lc_text = zend_str_tolower_dup(class_name_end + 2, textlen - 2 - class_name_len);
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textlen -= (class_name_len + 2);
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} else {
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lc_text = zend_str_tolower_dup(text, textlen);
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}
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switch (cli_completion_state) {
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case 0:
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case 1:
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retval = cli_completion_generator_func(lc_text, textlen, &cli_completion_state, pce ? &(*pce)->function_table : EG(function_table) TSRMLS_CC);
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if (retval) {
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break;
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}
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case 2:
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case 3:
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retval = cli_completion_generator_define(text, textlen, &cli_completion_state, pce ? &(*pce)->constants_table : EG(zend_constants) TSRMLS_CC);
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if (retval || pce) {
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break;
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}
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case 4:
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case 5:
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retval = cli_completion_generator_class(lc_text, textlen, &cli_completion_state TSRMLS_CC);
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break;
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default:
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break;
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}
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efree(lc_text);
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if (class_name_end) {
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efree(class_name);
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}
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if (pce && retval) {
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char *tmp = malloc(class_name_len + 2 + strlen(retval) + 1);
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sprintf(tmp, "%s::%s", (*pce)->name, retval);
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free(retval);
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retval = tmp;
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}
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}
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return retval;
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} /* }}} */
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/* {{{ cli_code_completion
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*/
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char **cli_code_completion(const char *text, int start, int end)
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{
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return rl_completion_matches(text, cli_completion_generator);
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}
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/* }}} */
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#endif /* HAVE_LIBREADLINE || HAVE_LIBEDIT */
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/*
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* Local variables:
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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* vim600: sw=4 ts=4 fdm=marker
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* vim<600: sw=4 ts=4
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*/
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