1 | // This file is a part of Framsticks SDK. http://www.framsticks.com/ |
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2 | // Copyright (C) 1999-2015 Maciej Komosinski and Szymon Ulatowski. |
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3 | // See LICENSE.txt for details. |
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4 | |
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5 | #include "stl-util.h" |
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6 | #include <stdarg.h> |
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7 | #include <stdlib.h> |
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8 | #include "nonstd_stdio.h" |
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9 | #include "Convert.h" |
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10 | #include "nonstd.h" |
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11 | #include "log.h" |
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12 | #include <assert.h> |
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13 | #ifdef USE_VIRTFILE |
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14 | #include <common/virtfile/virtfile.h> |
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15 | #endif |
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16 | #ifdef __BORLANDC__ |
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17 | #define va_copy(to,from) to=from //borland does not have va_copy() at all; va_list is just a pointer in borland |
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18 | #endif |
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19 | |
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20 | string ssprintf_va(const char* format, va_list ap) |
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21 | { |
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22 | string s; //clang crashed when this declaration was in s=buf |
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23 | int size = 256; |
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24 | char* buf; |
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25 | va_list ap_copy; // "va_list ap" can only by used once by printf-type functions as they advance the current argument pointer (crashed on linux x86_64) |
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26 | // (does not apply to SString::sprintf, it does not have the va_list variant) |
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27 | |
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28 | //almost like SString::sprintf, but there is no common code to share because SString can use its directWrite to avoid double allocating/copying |
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29 | #ifdef USE_VSCPRINTF |
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30 | va_copy(ap_copy, ap); |
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31 | size = _vscprintf(format, ap_copy) + 1; //+1 for terminating null character |
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32 | va_end(ap_copy); |
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33 | #endif |
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34 | |
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35 | while (1) |
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36 | { |
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37 | buf = (char*)malloc(size); |
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38 | assert(buf != NULL); |
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39 | va_copy(ap_copy, ap); |
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40 | int n = vsnprintf(buf, size, format, ap_copy); |
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41 | va_end(ap_copy); |
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42 | if (n > -1 && n < size) |
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43 | { |
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44 | s = buf; |
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45 | free(buf); |
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46 | return s; |
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47 | } |
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48 | #ifdef VSNPRINTF_RETURNS_REQUIRED_SIZE |
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49 | if (n > -1) /* glibc 2.1 */ |
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50 | size = n+1; /* precisely what is needed */ |
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51 | else /* glibc 2.0 */ |
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52 | #endif |
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53 | size *= 2; /* twice the old size */ |
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54 | free(buf); |
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55 | } |
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56 | } |
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57 | |
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58 | char* strmove(char *a, char *b) //strcpy that works well for overlapping strings ("Source and destination overlap") |
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59 | { |
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60 | if (a == NULL || b == NULL) |
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61 | return NULL; |
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62 | memmove(a, b, strlen(b) + 1); |
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63 | return a; |
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64 | } |
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65 | |
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66 | string ssprintf(const char* format, ...) |
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67 | { |
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68 | va_list ap; |
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69 | va_start(ap, format); |
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70 | string ret = ssprintf_va(format, ap); //is it too wasteful? copying the string again... unless the compiler can handle it better |
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71 | va_end(ap); |
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72 | return ret; |
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73 | } |
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74 | |
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75 | bool readCompleteFile(const char* filename, vector<char>& data, bool warn_on_missing_file) |
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76 | { |
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77 | bool ok = false; |
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78 | #ifdef USE_VIRTFILE |
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79 | // if (!isAbsolutePath(filename)) |
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80 | { |
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81 | VirtFILE *f=Vfopen(filename,FOPEN_READ_BINARY); |
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82 | if (f) |
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83 | { |
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84 | int size=f->getSize(); |
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85 | data.resize(size); |
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86 | int przeczytane = f->Vread(&data[0], size, 1); |
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87 | ok = przeczytane == 1; |
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88 | delete f; |
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89 | } |
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90 | } |
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91 | // else |
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92 | #endif |
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93 | { |
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94 | MFILE *f = mfopen(filename, FOPEN_READ_BINARY); |
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95 | if (f) |
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96 | { |
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97 | int size = getFileSize(f); |
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98 | data.resize(size); |
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99 | int przeczytane = mfread(&data[0], size, 1, f); |
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100 | mfclose(f); |
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101 | ok = przeczytane == 1; |
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102 | } |
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103 | } |
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104 | if (warn_on_missing_file && !ok) |
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105 | logPrintf("stl-util", "readCompleteFile", LOG_WARN, "Couldn't open file '%s'", filename); |
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106 | return ok; |
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107 | } |
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108 | |
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109 | bool readCompleteFile(const char* filename, string& out, bool warn_on_missing_file) |
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110 | { |
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111 | vector<char> data; |
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112 | if (readCompleteFile(filename, data, warn_on_missing_file)) |
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113 | { |
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114 | out = string(&data[0], data.size()); |
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115 | return true; |
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116 | } |
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117 | return false; |
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118 | } |
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119 | |
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120 | bool writeCompleteFile(const char* filename, const string& text, bool warn_on_fail) |
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121 | { |
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122 | #ifdef USE_VIRTFILE |
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123 | VirtFILE *f = Vfopen(filename, FOPEN_WRITE_BINARY); |
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124 | bool ok = f != NULL; |
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125 | if (f) |
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126 | { |
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127 | int zapisane = f->Vwrite(text.c_str(), text.length(), 1); |
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128 | delete f; |
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129 | ok &= zapisane == 1; |
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130 | } |
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131 | #else |
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132 | MFILE *f = mfopen(filename, FOPEN_WRITE_BINARY); |
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133 | bool ok = f != NULL; |
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134 | if (f) |
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135 | { |
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136 | int zapisane = mfwrite(text.c_str(), text.length(), 1, f); |
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137 | mfclose(f); |
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138 | ok &= zapisane == 1; |
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139 | } |
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140 | #endif |
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141 | if (warn_on_fail && !ok) |
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142 | logPrintf("stl-util", "writeCompleteFile", LOG_WARN, "Couldn't write file '%s'", filename); |
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143 | return ok; |
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144 | } |
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145 | |
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146 | bool writeCompleteFile(const char* filename, vector<char>& data, bool warn_on_fail) |
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147 | { |
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148 | string s(&data[0], data.size()); |
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149 | return writeCompleteFile(filename, s, warn_on_fail); |
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150 | } |
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151 | |
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152 | |
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153 | |
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154 | string stripExt(const string& filename) |
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155 | { |
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156 | size_t dot = filename.rfind('.'); |
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157 | if (dot == string::npos) return filename; |
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158 | size_t sep = filename.rfind(PATH_SEPARATOR_CHAR); |
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159 | if ((sep == string::npos) || (sep < dot)) |
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160 | return filename.substr(0, dot); |
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161 | return filename; |
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162 | } |
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163 | |
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164 | string stripFileDir(const string& filename) |
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165 | { |
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166 | size_t sep = filename.rfind(PATH_SEPARATOR_CHAR); |
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167 | if (sep == string::npos) return filename; |
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168 | return filename.substr(sep+1); |
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169 | } |
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170 | |
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171 | string getFileExt(const string& filename) |
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172 | { |
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173 | size_t dot = filename.rfind('.'); |
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174 | if (dot == string::npos) return string(""); |
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175 | size_t sep = filename.rfind(PATH_SEPARATOR_CHAR); |
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176 | if ((sep == string::npos) || (sep < dot)) |
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177 | return filename.substr(dot); |
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178 | return string(""); |
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179 | } |
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180 | |
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181 | string getFileDir(const string& filename) |
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182 | { |
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183 | size_t slash = filename.rfind(PATH_SEPARATOR_CHAR); |
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184 | if (slash == string::npos) return string(""); |
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185 | return filename.substr(0, slash); |
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186 | } |
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