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7267
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1 Created by PLY version 3.8 (http://www.dabeaz.com/ply)
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2
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3 Grammar
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4
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5 Rule 0 S' -> statement
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6 Rule 1 statement -> NAME EQUALS expression
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7 Rule 2 statement -> expression
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8 Rule 3 expression -> expression PLUS expression
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9 Rule 4 expression -> expression MINUS expression
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10 Rule 5 expression -> expression TIMES expression
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11 Rule 6 expression -> expression DIVIDE expression
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12 Rule 7 expression -> MINUS expression
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13 Rule 8 expression -> LPAREN expression RPAREN
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14 Rule 9 expression -> NUMBER
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15 Rule 10 expression -> NAME
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16
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17 Terminals, with rules where they appear
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18
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19 DIVIDE : 6
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20 EQUALS : 1
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21 LPAREN : 8
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22 MINUS : 4 7
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23 NAME : 1 10
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24 NUMBER : 9
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25 PLUS : 3
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26 RPAREN : 8
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27 TIMES : 5
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28 error :
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29
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30 Nonterminals, with rules where they appear
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31
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32 expression : 1 2 3 3 4 4 5 5 6 6 7 8
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33 statement : 0
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34
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35 Parsing method: LALR
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36
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37 state 0
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38
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39 (0) S' -> . statement
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40 (1) statement -> . NAME EQUALS expression
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41 (2) statement -> . expression
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42 (3) expression -> . expression PLUS expression
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43 (4) expression -> . expression MINUS expression
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44 (5) expression -> . expression TIMES expression
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45 (6) expression -> . expression DIVIDE expression
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46 (7) expression -> . MINUS expression
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47 (8) expression -> . LPAREN expression RPAREN
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48 (9) expression -> . NUMBER
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49 (10) expression -> . NAME
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50
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51 NAME shift and go to state 1
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52 MINUS shift and go to state 6
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53 LPAREN shift and go to state 4
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54 NUMBER shift and go to state 2
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55
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56 expression shift and go to state 5
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57 statement shift and go to state 3
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58
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59 state 1
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60
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61 (1) statement -> NAME . EQUALS expression
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62 (10) expression -> NAME .
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63
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64 EQUALS shift and go to state 7
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65 PLUS reduce using rule 10 (expression -> NAME .)
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66 MINUS reduce using rule 10 (expression -> NAME .)
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67 TIMES reduce using rule 10 (expression -> NAME .)
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68 DIVIDE reduce using rule 10 (expression -> NAME .)
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69 $end reduce using rule 10 (expression -> NAME .)
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70
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71
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72 state 2
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73
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74 (9) expression -> NUMBER .
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75
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76 RPAREN reduce using rule 9 (expression -> NUMBER .)
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77 PLUS reduce using rule 9 (expression -> NUMBER .)
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78 MINUS reduce using rule 9 (expression -> NUMBER .)
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79 TIMES reduce using rule 9 (expression -> NUMBER .)
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80 DIVIDE reduce using rule 9 (expression -> NUMBER .)
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81 $end reduce using rule 9 (expression -> NUMBER .)
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82
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83
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84 state 3
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85
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86 (0) S' -> statement .
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87
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88
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89
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90 state 4
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91
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92 (8) expression -> LPAREN . expression RPAREN
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93 (3) expression -> . expression PLUS expression
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94 (4) expression -> . expression MINUS expression
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95 (5) expression -> . expression TIMES expression
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96 (6) expression -> . expression DIVIDE expression
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97 (7) expression -> . MINUS expression
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98 (8) expression -> . LPAREN expression RPAREN
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99 (9) expression -> . NUMBER
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100 (10) expression -> . NAME
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101
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102 MINUS shift and go to state 6
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103 LPAREN shift and go to state 4
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104 NUMBER shift and go to state 2
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105 NAME shift and go to state 9
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106
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107 expression shift and go to state 8
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108
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109 state 5
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110
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111 (2) statement -> expression .
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112 (3) expression -> expression . PLUS expression
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113 (4) expression -> expression . MINUS expression
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114 (5) expression -> expression . TIMES expression
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115 (6) expression -> expression . DIVIDE expression
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116
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117 $end reduce using rule 2 (statement -> expression .)
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118 PLUS shift and go to state 10
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119 MINUS shift and go to state 12
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120 TIMES shift and go to state 13
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121 DIVIDE shift and go to state 11
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122
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123
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124 state 6
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125
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126 (7) expression -> MINUS . expression
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127 (3) expression -> . expression PLUS expression
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128 (4) expression -> . expression MINUS expression
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129 (5) expression -> . expression TIMES expression
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130 (6) expression -> . expression DIVIDE expression
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131 (7) expression -> . MINUS expression
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132 (8) expression -> . LPAREN expression RPAREN
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133 (9) expression -> . NUMBER
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134 (10) expression -> . NAME
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135
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136 MINUS shift and go to state 6
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137 LPAREN shift and go to state 4
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138 NUMBER shift and go to state 2
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139 NAME shift and go to state 9
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140
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141 expression shift and go to state 14
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142
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143 state 7
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144
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145 (1) statement -> NAME EQUALS . expression
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146 (3) expression -> . expression PLUS expression
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147 (4) expression -> . expression MINUS expression
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148 (5) expression -> . expression TIMES expression
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149 (6) expression -> . expression DIVIDE expression
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150 (7) expression -> . MINUS expression
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151 (8) expression -> . LPAREN expression RPAREN
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152 (9) expression -> . NUMBER
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153 (10) expression -> . NAME
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154
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155 MINUS shift and go to state 6
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156 LPAREN shift and go to state 4
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157 NUMBER shift and go to state 2
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158 NAME shift and go to state 9
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159
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160 expression shift and go to state 15
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161
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162 state 8
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163
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164 (8) expression -> LPAREN expression . RPAREN
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165 (3) expression -> expression . PLUS expression
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166 (4) expression -> expression . MINUS expression
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167 (5) expression -> expression . TIMES expression
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168 (6) expression -> expression . DIVIDE expression
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169
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170 RPAREN shift and go to state 16
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171 PLUS shift and go to state 10
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172 MINUS shift and go to state 12
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173 TIMES shift and go to state 13
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174 DIVIDE shift and go to state 11
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175
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176
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177 state 9
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178
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179 (10) expression -> NAME .
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180
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181 RPAREN reduce using rule 10 (expression -> NAME .)
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182 PLUS reduce using rule 10 (expression -> NAME .)
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183 MINUS reduce using rule 10 (expression -> NAME .)
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184 TIMES reduce using rule 10 (expression -> NAME .)
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185 DIVIDE reduce using rule 10 (expression -> NAME .)
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186 $end reduce using rule 10 (expression -> NAME .)
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187
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188
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189 state 10
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190
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191 (3) expression -> expression PLUS . expression
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192 (3) expression -> . expression PLUS expression
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193 (4) expression -> . expression MINUS expression
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194 (5) expression -> . expression TIMES expression
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195 (6) expression -> . expression DIVIDE expression
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196 (7) expression -> . MINUS expression
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197 (8) expression -> . LPAREN expression RPAREN
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198 (9) expression -> . NUMBER
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199 (10) expression -> . NAME
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200
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201 MINUS shift and go to state 6
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202 LPAREN shift and go to state 4
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203 NUMBER shift and go to state 2
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204 NAME shift and go to state 9
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205
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206 expression shift and go to state 17
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207
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208 state 11
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209
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210 (6) expression -> expression DIVIDE . expression
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211 (3) expression -> . expression PLUS expression
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212 (4) expression -> . expression MINUS expression
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213 (5) expression -> . expression TIMES expression
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214 (6) expression -> . expression DIVIDE expression
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215 (7) expression -> . MINUS expression
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216 (8) expression -> . LPAREN expression RPAREN
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217 (9) expression -> . NUMBER
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218 (10) expression -> . NAME
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219
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220 MINUS shift and go to state 6
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221 LPAREN shift and go to state 4
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222 NUMBER shift and go to state 2
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223 NAME shift and go to state 9
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224
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225 expression shift and go to state 18
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226
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227 state 12
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228
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229 (4) expression -> expression MINUS . expression
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230 (3) expression -> . expression PLUS expression
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231 (4) expression -> . expression MINUS expression
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232 (5) expression -> . expression TIMES expression
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233 (6) expression -> . expression DIVIDE expression
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234 (7) expression -> . MINUS expression
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235 (8) expression -> . LPAREN expression RPAREN
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236 (9) expression -> . NUMBER
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237 (10) expression -> . NAME
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238
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239 MINUS shift and go to state 6
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240 LPAREN shift and go to state 4
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241 NUMBER shift and go to state 2
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242 NAME shift and go to state 9
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243
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244 expression shift and go to state 19
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245
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246 state 13
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247
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248 (5) expression -> expression TIMES . expression
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249 (3) expression -> . expression PLUS expression
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250 (4) expression -> . expression MINUS expression
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251 (5) expression -> . expression TIMES expression
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252 (6) expression -> . expression DIVIDE expression
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253 (7) expression -> . MINUS expression
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254 (8) expression -> . LPAREN expression RPAREN
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255 (9) expression -> . NUMBER
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256 (10) expression -> . NAME
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257
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258 MINUS shift and go to state 6
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259 LPAREN shift and go to state 4
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260 NUMBER shift and go to state 2
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261 NAME shift and go to state 9
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262
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263 expression shift and go to state 20
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264
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265 state 14
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266
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267 (7) expression -> MINUS expression .
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268 (3) expression -> expression . PLUS expression
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269 (4) expression -> expression . MINUS expression
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270 (5) expression -> expression . TIMES expression
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271 (6) expression -> expression . DIVIDE expression
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272
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273 RPAREN reduce using rule 7 (expression -> MINUS expression .)
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274 PLUS reduce using rule 7 (expression -> MINUS expression .)
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275 MINUS reduce using rule 7 (expression -> MINUS expression .)
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276 TIMES reduce using rule 7 (expression -> MINUS expression .)
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277 DIVIDE reduce using rule 7 (expression -> MINUS expression .)
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278 $end reduce using rule 7 (expression -> MINUS expression .)
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279
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280 ! PLUS [ shift and go to state 10 ]
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281 ! MINUS [ shift and go to state 12 ]
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282 ! TIMES [ shift and go to state 13 ]
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283 ! DIVIDE [ shift and go to state 11 ]
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284
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285
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286 state 15
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287
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288 (1) statement -> NAME EQUALS expression .
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289 (3) expression -> expression . PLUS expression
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290 (4) expression -> expression . MINUS expression
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291 (5) expression -> expression . TIMES expression
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292 (6) expression -> expression . DIVIDE expression
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293
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294 $end reduce using rule 1 (statement -> NAME EQUALS expression .)
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295 PLUS shift and go to state 10
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296 MINUS shift and go to state 12
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297 TIMES shift and go to state 13
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298 DIVIDE shift and go to state 11
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299
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300
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301 state 16
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302
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303 (8) expression -> LPAREN expression RPAREN .
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304
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305 RPAREN reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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306 PLUS reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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307 MINUS reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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308 TIMES reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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309 DIVIDE reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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310 $end reduce using rule 8 (expression -> LPAREN expression RPAREN .)
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311
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312
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313 state 17
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314
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315 (3) expression -> expression PLUS expression .
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316 (3) expression -> expression . PLUS expression
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317 (4) expression -> expression . MINUS expression
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318 (5) expression -> expression . TIMES expression
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319 (6) expression -> expression . DIVIDE expression
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320
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321 RPAREN reduce using rule 3 (expression -> expression PLUS expression .)
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322 PLUS reduce using rule 3 (expression -> expression PLUS expression .)
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323 MINUS reduce using rule 3 (expression -> expression PLUS expression .)
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324 $end reduce using rule 3 (expression -> expression PLUS expression .)
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325 TIMES shift and go to state 13
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326 DIVIDE shift and go to state 11
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327
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328 ! TIMES [ reduce using rule 3 (expression -> expression PLUS expression .) ]
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329 ! DIVIDE [ reduce using rule 3 (expression -> expression PLUS expression .) ]
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330 ! PLUS [ shift and go to state 10 ]
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331 ! MINUS [ shift and go to state 12 ]
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332
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333
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334 state 18
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335
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336 (6) expression -> expression DIVIDE expression .
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337 (3) expression -> expression . PLUS expression
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338 (4) expression -> expression . MINUS expression
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339 (5) expression -> expression . TIMES expression
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340 (6) expression -> expression . DIVIDE expression
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341
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342 RPAREN reduce using rule 6 (expression -> expression DIVIDE expression .)
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343 PLUS reduce using rule 6 (expression -> expression DIVIDE expression .)
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344 MINUS reduce using rule 6 (expression -> expression DIVIDE expression .)
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345 TIMES reduce using rule 6 (expression -> expression DIVIDE expression .)
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346 DIVIDE reduce using rule 6 (expression -> expression DIVIDE expression .)
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347 $end reduce using rule 6 (expression -> expression DIVIDE expression .)
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348
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349 ! PLUS [ shift and go to state 10 ]
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350 ! MINUS [ shift and go to state 12 ]
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351 ! TIMES [ shift and go to state 13 ]
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352 ! DIVIDE [ shift and go to state 11 ]
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353
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354
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355 state 19
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356
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357 (4) expression -> expression MINUS expression .
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358 (3) expression -> expression . PLUS expression
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359 (4) expression -> expression . MINUS expression
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360 (5) expression -> expression . TIMES expression
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361 (6) expression -> expression . DIVIDE expression
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362
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363 RPAREN reduce using rule 4 (expression -> expression MINUS expression .)
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364 PLUS reduce using rule 4 (expression -> expression MINUS expression .)
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365 MINUS reduce using rule 4 (expression -> expression MINUS expression .)
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366 $end reduce using rule 4 (expression -> expression MINUS expression .)
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367 TIMES shift and go to state 13
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368 DIVIDE shift and go to state 11
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369
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370 ! TIMES [ reduce using rule 4 (expression -> expression MINUS expression .) ]
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371 ! DIVIDE [ reduce using rule 4 (expression -> expression MINUS expression .) ]
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372 ! PLUS [ shift and go to state 10 ]
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373 ! MINUS [ shift and go to state 12 ]
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374
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375
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376 state 20
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377
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378 (5) expression -> expression TIMES expression .
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379 (3) expression -> expression . PLUS expression
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380 (4) expression -> expression . MINUS expression
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381 (5) expression -> expression . TIMES expression
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382 (6) expression -> expression . DIVIDE expression
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383
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384 RPAREN reduce using rule 5 (expression -> expression TIMES expression .)
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385 PLUS reduce using rule 5 (expression -> expression TIMES expression .)
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386 MINUS reduce using rule 5 (expression -> expression TIMES expression .)
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387 TIMES reduce using rule 5 (expression -> expression TIMES expression .)
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388 DIVIDE reduce using rule 5 (expression -> expression TIMES expression .)
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389 $end reduce using rule 5 (expression -> expression TIMES expression .)
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390
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391 ! PLUS [ shift and go to state 10 ]
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392 ! MINUS [ shift and go to state 12 ]
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393 ! TIMES [ shift and go to state 13 ]
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394 ! DIVIDE [ shift and go to state 11 ]
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395
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