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annotate modules/string.tp @ 151:3e9cb69e516d

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Added from and from:withLength for doing substring operations
author Mike Pavone <pavone@retrodev.com>
date Fri, 09 Aug 2013 13:20:40 -0700
parents 7dfa4481deb0
children a6739206a9e3
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1 #{
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2 llProperty: len withType: uint32_t
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3 llProperty: bytes withType: uint32_t
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4 llProperty: data withType: (char ptr)
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5
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6 llMessage: length withVars: {
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7 intret <- (obj_int32 ptr)
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8 } andCode: {
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9 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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10 intret num!: len
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11 intret
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12 }
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14 llMessage: byte_length withVars: {
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15 intret <- (obj_int32 ptr)
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16 } andCode: {
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17 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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18 intret num!: bytes
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19 intret
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20 }
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22 llMessage: EQ_ withVars: {
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23 argb <- (string ptr)
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24 } andCode: :argb {
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25 if: len = (argb len) && bytes = (argb bytes) && (not: (memcmp: data (argb data) bytes)) {
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26 true
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27 }
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28 }
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30 llMessage: NEQ_ withVars: {
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31 argb <- (string ptr)
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32 } andCode: :argb {
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33 if: len != (argb len) || bytes != (argb bytes) || (memcmp: data (argb data) bytes) {
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34 true
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35 }
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36 }
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38 llMessage: print withVars: {} andCode: {
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39 fwrite: data 1 bytes stdout
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40 self
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41 }
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43 llMessage: string withVars: {} andCode: {
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44 self
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45 }
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47 llMessage: CAT_ withVars: {
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48 argbo <- (object ptr)
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49 argb <- (string ptr)
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50 out <- (string ptr)
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51 } andCode: :argbo {
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52 argb <- mcall: string 1 argbo
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53 out <- make_object: (addr_of: string_meta) NULL 0
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54 out bytes!: bytes + (argb bytes)
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55 out len!: len + (argb len)
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56 out data!: (GC_MALLOC_ATOMIC: (out bytes) + 1)
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57 memcpy: (out data) data bytes
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58 memcpy: (out data) + bytes (argb data) (argb bytes) + 1
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59 out
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60 }
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62 llMessage: byte withVars: {
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63 index <- (obj_int32 ptr)
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64 intret <- (obj_int32 ptr)
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65 } andCode: :index {
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66 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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67 intret num!: (if: (index num) < bytes { data get: (index num) } else: {0})
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68 intret
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69 }
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71 llMessage: int32 withVars: {
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72 intret <- (obj_int32 ptr)
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73 } andCode: {
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74 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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75 intret num!: (atoi: data)
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76 intret
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77 }
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79 llMessage: hash withVars: {
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80 intret <- (obj_int32 ptr)
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81 i <- uint32_t
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82 } andCode: {
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83 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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84 intret num!: 0
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85 if: bytes {
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86 intret num!: (data get: 0) * 128
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87 i <- 0
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88 while: { i < bytes } do: {
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89 intret num!: (1000003 * (intret num)) xor (data get: i)
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90 i <- i + 1
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91 }
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92 intret num!: (intret num) xor bytes
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93 }
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94 intret
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95 }
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97 llMessage: find:else withVars: {
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98 intret <- obj_int32 ptr
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99 oneedle <- object ptr
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100 ifNotFound <- object ptr
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101 sneedle <- string ptr
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102 i <- uint32_t
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103 notFound <- uint32_t
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104 } andCode: :oneedle :ifNotFound {
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105 sneedle <- mcall: string 1 oneedle
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106 i <- 0
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107 notFound <- 1
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108 while: { notFound && i + (sneedle bytes) <= bytes} do: {
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109 if: (memcmp: data + i (sneedle data) (sneedle bytes)) = 0 {
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110 notFound <- 0
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111 } else: {
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112 i <- i + 1
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113 }
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114 }
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115 if: notFound {
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116 ccall: ifNotFound 0
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117 } else: {
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118 intret <- make_object: (addr_of: obj_int32_meta) NULL 0
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119 intret num!: i
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120 intret
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121 }
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122 }
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123
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124 llMessage: from:withLength withVars: {
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125 from <- obj_int32 ptr
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126 tocopy <- obj_int32 ptr
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127 ret <- string ptr
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128 start <- int32_t
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129 clampedLen <- int32_t
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130 } andCode: :from :tocopy {
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131 start <- from num
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132 if: start < 0 {
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133 start <- bytes + start
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134 }
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135 if: start > bytes {
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136 start <- bytes
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137 }
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138 clampedLen <- tocopy num
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139 if: start + clampedLen > bytes {
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140 clampedLen <- bytes - start
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141 }
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142 ret <- make_object: (addr_of: string_meta) NULL 0
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143 ret data!: (GC_MALLOC_ATOMIC: clampedLen + 1)
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144 memcpy: (ret data) data + start clampedLen
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145 ret len!: clampedLen
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Mike Pavone <pavone@retrodev.com>
parents: 150
diff changeset
146 ret bytes!: clampedLen
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
diff changeset
147 ret
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
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148 }
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
diff changeset
149
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
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150 from <- :start {
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
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151 from: start withLength: length
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
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152 }
3e9cb69e516d Added from and from:withLength for doing substring operations
Mike Pavone <pavone@retrodev.com>
parents: 150
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153
147
4c96a393103e Add support for receiving data from a socket
Mike Pavone <pavone@retrodev.com>
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154 isInteger? <- { false }
88
474f17ebaaa0 Add string.tp which should have been in previous commit
Mike Pavone <pavone@retrodev.com>
parents:
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155 }