1 | #!/usr/bin/env python |
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2 | """ WrapperGenerator class to generate model code automatically. |
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3 | |
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4 | This code was written as part of the DANSE project |
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5 | http://danse.us/trac/sans/wiki/WikiStart |
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6 | |
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7 | """ |
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8 | |
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9 | import os, sys |
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10 | |
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11 | class WrapperGenerator: |
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12 | """ Python wrapper generator for C models |
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13 | |
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14 | The developer must provide a header file describing |
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15 | the new model. |
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16 | |
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17 | @author: Mathieu Doucet / UTK |
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18 | @contact: mathieu.doucet@nist.gov |
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19 | """ |
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20 | |
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21 | def __init__(self, filename, args): |
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22 | """ Initialization |
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23 | @param filename: path of header file to wrap |
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24 | @param args: list of parameters to disperse |
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25 | """ |
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26 | |
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27 | ## Name of .h file to generate wrapper from |
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28 | self.file = filename |
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29 | |
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30 | # Info read from file |
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31 | |
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32 | ## Name of python class to write |
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33 | self.pythonClass = None |
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34 | ## Parser in struct section |
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35 | self.inStruct = False |
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36 | ## Name of struct for the c object |
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37 | self.structName = None |
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38 | ## Dictionary of parameters |
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39 | self.params = {} |
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40 | ## ModelCalculation module flag |
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41 | self.modelCalcFlag = False |
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42 | ## List of default parameters (text) |
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43 | self.default_list = "" |
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44 | ## Base struct name |
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45 | self.base_struct = "" |
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46 | ## Base header file name |
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47 | self.base_header = "" |
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48 | ## Bindings to parameter array |
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49 | self.translation_list = "" |
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50 | self.counter = 0 |
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51 | self.disperse_count = 0 |
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52 | self.disperse_code = "" |
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53 | self.added_list = "" |
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54 | self.phi_index = -1 |
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55 | self.theta_index = -1 |
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56 | |
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57 | self.disp_list = args |
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58 | |
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59 | |
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60 | def read(self): |
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61 | """ Reads in the .h file to catch parameters of the wrapper """ |
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62 | |
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63 | # Check if the file is there |
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64 | if not os.path.isfile(self.file): |
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65 | raise ValueError, "File %s is not a regular file" % self.file |
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66 | |
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67 | # Read file |
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68 | f = open(self.file,'r') |
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69 | buf = f.read() |
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70 | |
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71 | self.default_list = " // List of default parameters:\n" |
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72 | #lines = string.split(buf,'\n') |
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73 | lines = buf.split('\n') |
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74 | for line in lines: |
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75 | |
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76 | # Catch class name |
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77 | key = "[PYTHONCLASS]" |
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78 | if line.count(key)>0: |
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79 | try: |
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80 | index = line.index(key) |
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81 | #toks = string.split( line[index:], "=" ) |
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82 | toks = line[index:].split("=" ) |
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83 | self.pythonClass = toks[1].lstrip().rstrip() |
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84 | except: |
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85 | raise ValueError, "Could not parse file %s" % self.file |
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86 | |
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87 | # Catch struct name |
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88 | if line.count("typedef struct")>0: |
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89 | # We are entering a struct block |
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90 | self.inStruct = True |
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91 | |
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92 | if self.inStruct and line.count("}")>0: |
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93 | # We are exiting a struct block |
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94 | self.inStruct = False |
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95 | |
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96 | # Catch the name of the struct |
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97 | index = line.index("}") |
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98 | #toks = string.split(line[index+1:],";") |
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99 | toks = line[index+1:].split(";") |
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100 | # Catch pointer definition |
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101 | #toks2 = string.split(toks[0],',') |
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102 | toks2 = toks[0].split(',') |
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103 | self.structName = toks2[0].lstrip().rstrip() |
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104 | |
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105 | # Catch struct content |
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106 | key = "[DEFAULT]" |
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107 | if self.inStruct and line.count(key)>0: |
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108 | # Found a new parameter |
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109 | try: |
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110 | index = line.index(key) |
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111 | toks = line[index:].split("=") |
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112 | toks2 = toks[2].split() |
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113 | val = float(toks2[0]) |
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114 | |
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115 | # Find in dispersed list |
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116 | if toks[1] in self.disp_list: |
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117 | print "Found ", toks[1] |
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118 | self.disperse_code += " // %s\n" % toks[1] |
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119 | self.disperse_code += " paramList[%i] = %i;\n" % (self.disperse_count, self.counter) |
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120 | self.disperse_count += 1 |
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121 | |
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122 | #self.pythonClass = toks[1].lstrip().rstrip() |
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123 | units = "" |
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124 | if len(toks2) >= 2: |
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125 | units = toks2[1] |
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126 | self.default_list += " // pars[%i]: %-15s = %s %s\n" % \ |
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127 | (self.counter, toks[1], val, units) |
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128 | |
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129 | # Identify theta and phi indices, if present |
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130 | if toks[1].count('phi'): |
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131 | self.phi_index = self.counter |
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132 | if toks[1].count('theta'): |
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133 | self.theta_index = self.counter |
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134 | |
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135 | # Bindings |
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136 | self.translation_list += " danse_pars.%s = pars[%i];\n" % ( toks[1], self.counter) |
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137 | self.counter += 1 |
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138 | |
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139 | except: |
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140 | raise ValueError, "Could not parse input file %s \n %s" % \ |
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141 | (self.file, sys.exc_value) |
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142 | |
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143 | |
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144 | def write_c_wrapper(self): |
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145 | """ |
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146 | Writes the C file to create the dispersed model function |
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147 | """ |
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148 | |
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149 | toks = os.path.basename(self.file).split('.') |
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150 | file = open("src/disp_"+toks[0]+'.c', 'w') |
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151 | template = open("templates/disperse_template.c", 'r') |
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152 | |
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153 | tmp_buf = template.read() |
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154 | #tmp_lines = string.split(tmp_buf,'\n') |
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155 | tmp_lines = tmp_buf.split('\n') |
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156 | |
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157 | |
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158 | self.translation_list = self.default_list+self.translation_list |
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159 | |
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160 | sigma_txt = "\n" |
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161 | for i in range(len(self.disp_list)): |
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162 | ipar = self.counter+i |
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163 | sigma_txt += " sigmaList[%i] = dp[%i];\n" % (i, ipar) |
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164 | |
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165 | ipar = self.counter+len(self.disp_list) |
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166 | sigma_txt += "\n npts = (int)(floor(dp[%i]));\n" % ipar |
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167 | |
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168 | self.disperse_code += sigma_txt |
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169 | |
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170 | # Document the added (dispersed) parameters |
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171 | added_pars_txt = "\n" |
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172 | for i in range(len(self.disp_list)): |
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173 | ipar = self.counter+i |
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174 | added_pars_txt += " // pars[%i]: dispersion of %s\n" % (ipar, self.disp_list[i]) |
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175 | |
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176 | ipar = self.counter+len(self.disp_list) |
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177 | added_pars_txt += " // pars[%s]: number of points in dispersion curve\n" % \ |
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178 | str(self.counter+len(self.disp_list)) |
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179 | |
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180 | |
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181 | for tmp_line in tmp_lines: |
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182 | |
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183 | # Catch class name |
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184 | newline = self.replaceToken(tmp_line, |
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185 | "[PYTHONCLASS]", 'C'+self.pythonClass) |
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186 | |
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187 | # Catch class name |
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188 | newline = self.replaceToken(newline, |
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189 | "[MODELSTRUCT]", self.structName) |
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190 | |
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191 | # Dictionary initialization |
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192 | param_str = "// bindings to parameter array\n" |
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193 | newline = self.replaceToken(newline, |
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194 | "[BINDINGS]", self.translation_list) |
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195 | |
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196 | newline = self.replaceToken(newline, |
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197 | "[DISPERSE]", self.disperse_code) |
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198 | |
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199 | # Name of .c file |
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200 | #toks = string.split(self.file,'.') |
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201 | toks = os.path.basename(self.file).split('.') |
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202 | newline = self.replaceToken(newline, "[C_FILENAME]", toks[0]) |
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203 | |
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204 | # Include file |
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205 | newline = self.replaceToken(newline, |
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206 | "[INCLUDE_FILE]", os.path.basename(self.file)) |
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207 | |
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208 | # Include file |
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209 | newline = self.replaceToken(newline, |
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210 | "[NDISPERSE]", str(len(self.disp_list))) |
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211 | |
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212 | # Number of parameters |
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213 | newline = self.replaceToken(newline, |
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214 | "[NPARS]", str(self.counter+len(self.disp_list)+1)) |
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215 | |
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216 | # Documentation |
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217 | newline = self.replaceToken(newline, |
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218 | "[PARS_LIST]", self.default_list+added_pars_txt) |
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219 | |
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220 | # Write new line to the wrapper .c file |
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221 | file.write(newline+'\n') |
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222 | |
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223 | |
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224 | file.close() |
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225 | |
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226 | |
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227 | def write_weight_function(self): |
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228 | """ |
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229 | Writes the C file to create the dispersed model function |
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230 | with angular distributions |
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231 | """ |
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232 | # If we dont' have any angle, just return |
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233 | if self.phi_index<0 and self.theta_index<0: |
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234 | return |
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235 | |
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236 | |
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237 | toks = os.path.basename(self.file).split('.') |
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238 | file = open("src/weighted_"+toks[0]+'.c', 'w') |
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239 | template = open("templates/weighted_template.c", 'r') |
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240 | |
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241 | tmp_buf = template.read() |
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242 | tmp_lines = tmp_buf.split('\n') |
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243 | |
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244 | #self.translation_list = self.default_list+self.translation_list |
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245 | added_pars_txt = "\n" |
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246 | for i in range(len(self.disp_list)): |
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247 | ipar = self.counter+i |
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248 | added_pars_txt += " // pars[%i]: dispersion of %s\n" % (ipar, self.disp_list[i]) |
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249 | |
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250 | ipar = self.counter+len(self.disp_list) |
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251 | added_pars_txt += " // pars[%s]: number of points in dispersion curve\n" % \ |
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252 | str(self.counter+len(self.disp_list)) |
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253 | added_pars_txt += " * \n" |
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254 | added_pars_txt += " * NOTE: DO NOT USE THETA AND PHI PARAMETERS WHEN\n" |
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255 | added_pars_txt += " * USING THIS FUNCTION TO APPLY ANGULAR DISTRIBUTIONS." |
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256 | |
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257 | |
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258 | |
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259 | for tmp_line in tmp_lines: |
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260 | |
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261 | # Catch class name |
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262 | newline = self.replaceToken(tmp_line, |
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263 | "[PYTHONCLASS]", self.pythonClass) |
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264 | |
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265 | # Dictionary initialization |
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266 | param_str = "// bindings to parameter array\n" |
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267 | newline = self.replaceToken(newline, |
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268 | "[PARS_LIST]", self.default_list+added_pars_txt) |
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269 | |
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270 | # Name of .c file |
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271 | #toks = string.split(self.file,'.') |
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272 | toks = os.path.basename(self.file).split('.') |
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273 | newline = self.replaceToken(newline, "[MODEL_NAME]", toks[0]) |
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274 | |
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275 | toks = os.path.basename(self.file).split('.') |
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276 | newline = self.replaceToken(newline, "[C_FILE_NAME]", "disp_%s.c" % toks[0]) |
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277 | |
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278 | # Include file |
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279 | newline = self.replaceToken(newline, |
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280 | "[INCLUDE_FILE]", os.path.basename(self.file)) |
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281 | |
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282 | # Include file |
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283 | #newline = self.replaceToken(newline, |
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284 | # "[NDISPERSE]", str(len(self.disp_list))) |
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285 | |
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286 | # Number of parameters |
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287 | newline = self.replaceToken(newline, |
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288 | "[NPARS]", str(self.counter+len(self.disp_list)+1)) |
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289 | |
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290 | # Theta index |
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291 | newline = self.replaceToken(newline, |
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292 | "[THETA_INDEX]", str(self.theta_index)) |
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293 | |
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294 | # Phi index |
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295 | newline = self.replaceToken(newline, |
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296 | "[PHI_INDEX]", str(self.phi_index)) |
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297 | |
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298 | # Write new line to the wrapper .c file |
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299 | file.write(newline+'\n') |
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300 | |
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301 | |
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302 | file.close() |
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303 | |
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304 | def replaceToken(self, line, key, value): #pylint: disable-msg=R0201 |
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305 | """ Replace a token in the template file |
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306 | @param line: line of text to inspect |
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307 | @param key: token to look for |
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308 | @param value: string value to replace the token with |
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309 | @return: new string value |
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310 | """ |
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311 | lenkey = len(key) |
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312 | newline = line |
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313 | while newline.count(key)>0: |
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314 | index = newline.index(key) |
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315 | newline = newline[:index]+value+newline[index+lenkey:] |
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316 | return newline |
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317 | |
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318 | |
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319 | # main |
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320 | if __name__ == '__main__': |
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321 | if len(sys.argv)>1: |
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322 | print "Will look for file %s" % sys.argv[1] |
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323 | app = WrapperGenerator(sys.argv[1], sys.argv[2:]) |
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324 | app.read() |
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325 | app.write_c_wrapper() |
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326 | app.write_weight_function() |
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327 | else: |
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328 | print "Usage: python igorGenerator.py [header file] [list of parameters to disperse]" |
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329 | print "" |
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330 | print "Example: " |
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331 | print " python igorGenerator.py cylinder.h cyl_phi cyl_theta" |
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332 | |
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333 | # End of file |
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