comparison: ui/common/utils.c
ui/common/utils.c
- changeset 115
- e57ca2747782
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| 114:3da24640513a | 115:e57ca2747782 |
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| 1 /* | |
| 2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. | |
| 3 * | |
| 4 * Copyright 2017 Olaf Wintermann. All rights reserved. | |
| 5 * | |
| 6 * Redistribution and use in source and binary forms, with or without | |
| 7 * modification, are permitted provided that the following conditions are met: | |
| 8 * | |
| 9 * 1. Redistributions of source code must retain the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer. | |
| 11 * | |
| 12 * 2. Redistributions in binary form must reproduce the above copyright | |
| 13 * notice, this list of conditions and the following disclaimer in the | |
| 14 * documentation and/or other materials provided with the distribution. | |
| 15 * | |
| 16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" | |
| 17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE | |
| 20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR | |
| 21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | |
| 22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS | |
| 23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN | |
| 24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | |
| 25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
| 26 * POSSIBILITY OF SUCH DAMAGE. | |
| 27 */ | |
| 28 | |
| 29 #include "utils.h" | |
| 30 #include "properties.h" | |
| 31 | |
| 32 #include <stdio.h> | |
| 33 #include <string.h> | |
| 34 | |
| 35 #include <cx/string.h> | |
| 36 #include <cx/buffer.h> | |
| 37 | |
| 38 UiPathElm* ui_default_pathelm_func(const char* full_path, size_t len, size_t* ret_nelm, void* data) { | |
| 39 cxstring *pathelms; | |
| 40 size_t nelm = cx_strsplit_a(cxDefaultAllocator, cx_strn(full_path, len), CX_STR("/"), 4096, &pathelms); | |
| 41 | |
| 42 if (nelm == 0) { | |
| 43 *ret_nelm = 0; | |
| 44 return NULL; | |
| 45 } | |
| 46 | |
| 47 UiPathElm* elms = (UiPathElm*)calloc(nelm, sizeof(UiPathElm)); | |
| 48 size_t n = nelm; | |
| 49 int j = 0; | |
| 50 for (int i = 0; i < nelm; i++) { | |
| 51 cxstring c = pathelms[i]; | |
| 52 if (c.length == 0) { | |
| 53 if (i == 0) { | |
| 54 c.length = 1; | |
| 55 } | |
| 56 else { | |
| 57 n--; | |
| 58 continue; | |
| 59 } | |
| 60 } | |
| 61 | |
| 62 cxmutstr m = cx_strdup(c); | |
| 63 elms[j].name = m.ptr; | |
| 64 elms[j].name_len = m.length; | |
| 65 | |
| 66 size_t elm_path_len = c.ptr + c.length - full_path; | |
| 67 cxmutstr elm_path = cx_strdup(cx_strn(full_path, elm_path_len)); | |
| 68 elms[j].path = elm_path.ptr; | |
| 69 elms[j].path_len = elm_path.length; | |
| 70 | |
| 71 j++; | |
| 72 } | |
| 73 *ret_nelm = n; | |
| 74 | |
| 75 return elms; | |
| 76 } | |
| 77 | |
| 78 void ui_get_window_default_width(int *width, int *height) { | |
| 79 const char *width_str = ui_get_property("ui.window.width"); | |
| 80 const char *height_str = ui_get_property("ui.window.height"); | |
| 81 if(width_str && height_str) { | |
| 82 int w = atoi(width_str); | |
| 83 int h = atoi(height_str); | |
| 84 if(w > 0 && h > 0) { | |
| 85 *width = w; | |
| 86 *height = h; | |
| 87 } | |
| 88 } | |
| 89 } | |
| 90 | |
| 91 // from UCX json.c | |
| 92 static cxmutstr escape_string(cxstring str, bool escape_slash) { | |
| 93 // note: this function produces the string without enclosing quotes | |
| 94 // the reason is that we don't want to allocate memory just for that | |
| 95 CxBuffer buf = {0}; | |
| 96 | |
| 97 bool all_printable = true; | |
| 98 for (size_t i = 0; i < str.length; i++) { | |
| 99 unsigned char c = str.ptr[i]; | |
| 100 bool escape = c < 0x20 || c == '\\' || c == '"' | |
| 101 || (escape_slash && c == '/'); | |
| 102 | |
| 103 if (all_printable && escape) { | |
| 104 size_t capa = str.length + 32; | |
| 105 char *space = cxMallocDefault(capa); | |
| 106 if (space == NULL) return cx_mutstrn(NULL, 0); | |
| 107 cxBufferInit(&buf, space, capa, NULL, CX_BUFFER_AUTO_EXTEND); | |
| 108 cxBufferWrite(str.ptr, 1, i, &buf); | |
| 109 all_printable = false; | |
| 110 } | |
| 111 if (escape) { | |
| 112 cxBufferPut(&buf, '\\'); | |
| 113 if (c == '\"') { | |
| 114 cxBufferPut(&buf, '\"'); | |
| 115 } else if (c == '\n') { | |
| 116 cxBufferPut(&buf, 'n'); | |
| 117 } else if (c == '\t') { | |
| 118 cxBufferPut(&buf, 't'); | |
| 119 } else if (c == '\r') { | |
| 120 cxBufferPut(&buf, 'r'); | |
| 121 } else if (c == '\\') { | |
| 122 cxBufferPut(&buf, '\\'); | |
| 123 } else if (c == '/') { | |
| 124 cxBufferPut(&buf, '/'); | |
| 125 } else if (c == '\f') { | |
| 126 cxBufferPut(&buf, 'f'); | |
| 127 } else if (c == '\b') { | |
| 128 cxBufferPut(&buf, 'b'); | |
| 129 } else { | |
| 130 char code[6]; | |
| 131 snprintf(code, sizeof(code), "u%04x", (unsigned int) c); | |
| 132 cxBufferPutString(&buf, code); | |
| 133 } | |
| 134 } else if (!all_printable) { | |
| 135 cxBufferPut(&buf, c); | |
| 136 } | |
| 137 } | |
| 138 cxmutstr ret; | |
| 139 if (all_printable) { | |
| 140 // don't copy the string when we don't need to escape anything | |
| 141 ret = cx_mutstrn((char*)str.ptr, str.length); | |
| 142 } else { | |
| 143 ret = cx_mutstrn(buf.space, buf.size); | |
| 144 } | |
| 145 cxBufferDestroy(&buf); | |
| 146 return ret; | |
| 147 } | |
| 148 | |
| 149 cxmutstr ui_escape_string(cxstring str) { | |
| 150 return escape_string(str, FALSE); | |
| 151 } |
