[ae3ce4e] | 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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