annotate foosdk/sdk/pfc/printf.cpp @ 1:20d02a178406 default tip

*: check in everything else yay
author Paper <paper@tflc.us>
date Mon, 05 Jan 2026 02:15:46 -0500
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1 #include "pfc-lite.h"
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2 #include "string_base.h"
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3
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4 //implementations of deprecated string_printf methods, with a pragma to disable warnings when they reference other deprecated methods.
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5
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6 #ifndef _MSC_VER
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7 #define _itoa_s itoa
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8 #define _ultoa_s ultoa
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9 #endif
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10
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11 #ifdef _MSC_VER
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12 #pragma warning(disable:4996)
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13 #endif
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14
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15 namespace pfc {
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16 string8 string_printf(const char * fmt, ...) {
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17 string8 ret;
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18 va_list list;
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19 va_start(list, fmt);
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20 string_printf_here_va(ret, fmt, list);
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21 va_end(list);
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22 return ret;
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23 }
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24 string8 string_printf_va(const char * fmt, va_list list) {
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25 string8 ret;
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26 string_printf_here_va(ret, fmt, list);
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27 return ret;
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28 }
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29 void string_printf_here(string_base & out, const char * fmt, ...) {
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30 va_list list;
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31 va_start(list, fmt);
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32 string_printf_here_va(out, fmt, list);
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33 va_end(list);
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34 }
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35 void string_printf_here_va(string_base & out, const char * fmt, va_list list) {
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36 out.reset();
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37 while(*fmt)
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38 {
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39 if (*fmt=='%')
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40 {
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41 fmt++;
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42 if (*fmt=='%')
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43 {
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44 out.add_char('%');
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45 fmt++;
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46 }
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47 else
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48 {
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49 bool force_sign = false;
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50 if (*fmt=='+')
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51 {
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52 force_sign = true;
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53 fmt++;
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54 }
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55 char padchar = (*fmt == '0') ? '0' : ' ';
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56 t_size pad = 0;
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57 while(*fmt>='0' && *fmt<='9')
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58 {
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59 pad = pad * 10 + (*fmt - '0');
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60 fmt++;
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61 }
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62
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63 if (*fmt=='s' || *fmt=='S')
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64 {
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65 const char * ptr = va_arg(list,const char*);
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66 t_size len = strlen(ptr);
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67 if (pad>len) out.add_chars(padchar,pad-len);
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68 out.add_string(ptr);
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69 fmt++;
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70
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71 }
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72 else if (*fmt=='i' || *fmt=='I' || *fmt=='d' || *fmt=='D')
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73 {
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74 int val = va_arg(list,int);
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75 if (force_sign && val>0) out.add_char('+');
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76 auto temp = pfc::format_int( val );
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77 t_size len = strlen(temp);
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78 if (pad>len) out.add_chars(padchar,pad-len);
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79 out.add_string(temp);
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80 fmt++;
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81 }
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82 else if (*fmt=='u' || *fmt=='U')
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83 {
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84 int val = va_arg(list,int);
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85 if (force_sign && val>0) out.add_char('+');
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86 auto temp = pfc::format_uint(val);
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87 t_size len = strlen(temp);
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88 if (pad>len) out.add_chars(padchar,pad-len);
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89 out.add_string(temp);
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90 fmt++;
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91 }
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92 else if (*fmt=='x' || *fmt=='X')
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93 {
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94 auto val = va_arg(list,unsigned);
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95 if (force_sign && val>0) out.add_char('+');
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96 auto temp = pfc::format_uint(val, 0, 16);
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97 if (*fmt=='X')
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98 {
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99 char * t = const_cast< char* > ( temp.c_str() );
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100 while(*t)
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101 {
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102 *t = pfc::ascii_toupper(*t);
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103 t++;
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104 }
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105 } else {
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106 char* t = const_cast<char*> (temp.c_str());
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107 while (*t)
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108 {
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109 *t = pfc::ascii_tolower(*t);
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110 t++;
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111 }
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112 }
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113 t_size len = strlen(temp);
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114 if (pad>len) out.add_chars(padchar,pad-len);
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115 out.add_string(temp);
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116 fmt++;
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117 }
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118 else if (*fmt=='c' || *fmt=='C')
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119 {
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120 out.add_char(va_arg(list,int));
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121 fmt++;
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122 }
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123 }
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124 }
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125 else
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126 {
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127 out.add_char(*(fmt++));
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128 }
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129 }
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130 }
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131
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132 }