mirror of
https://gitlab.com/scemama/irpf90.git
synced 2024-06-02 11:25:19 +02:00
293 lines
8.3 KiB
Python
Executable File
293 lines
8.3 KiB
Python
Executable File
#!/usr/bin/env python
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# IRPF90 is a Fortran90 preprocessor written in Python for programming using
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# the Implicit Reference to Parameters (IRP) method.
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# Copyright (C) 2009 Anthony SCEMAMA
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License along
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# with this program; if not, write to the Free Software Foundation, Inc.,
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# 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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#
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# Anthony Scemama
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# LCPQ - IRSAMC - CNRS
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# Universite Paul Sabatier
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# 118, route de Narbonne
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# 31062 Toulouse Cedex 4
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# scemama@irsamc.ups-tlse.fr
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import sys
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import re
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LENMAX = 70
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tabn = 2
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tab = " " * tabn
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class Grep(object):
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re_begin_program = re.compile(r"^\s*program\s", flags=re.I)
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def begin_program(self, string):
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return re.match(self.re_begin_program, string) is not None
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re_end_program = re.compile(r"\s*(end\s*!?$|end\s*program)", flags=re.I)
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def end_program(self, string):
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return re.match(self.re_end_program, string) is not None
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re_begin_subroutine = re.compile(r"^\s*(recursive)?\s*subroutine\s", flags=re.I)
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def begin_subroutine(self, string):
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return re.match(self.re_begin_subroutine, string) is not None
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re_end_subroutine = re.compile(r"\s*(end\s*!?$|end\s*subroutine)", flags=re.I)
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def end_subroutine(self, string):
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return re.match(self.re_end_subroutine, string) is not None
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re_begin_function = re.compile(r"^.*function\s+.*\(", flags=re.I)
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def begin_function(self, string):
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return re.match(self.re_begin_function, string) is not None
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re_end_function = re.compile(r"\s*(end\s*!?$|end\s*function)", flags=re.I)
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def end_function(self, string):
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return re.match(self.re_end_function, string) is not None
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re_begin_provider = re.compile(r"^\s*&?begin_provider\s", flags=re.I)
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def begin_provider(self, string):
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return re.match(self.re_begin_provider, string) is not None
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re_end_provider = re.compile(r"^\s*end_provider\s*(!.*)?$", flags=re.I)
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def end_provider(self, string):
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return re.match(self.re_end_provider, string) is not None
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re_begin_do = re.compile(r"^\s*do\s+", flags=re.I)
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def begin_do(self, string):
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return re.match(self.re_begin_do, string) is not None
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re_end_do = re.compile(r"^\s*end\s*do\s*(!.*)?$", flags=re.I)
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def end_do(self, string):
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return re.match(self.re_end_do, string) is not None
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re_begin_if = re.compile(r"^\s*if(\(|\s+).*(&|then)\s*(!.*)?$", flags=re.I)
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def begin_if(self, string):
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return re.match(self.re_begin_if, string) is not None
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re_else = re.compile(r"^\s*else", flags=re.I)
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def xelse(self, string):
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return re.match(self.re_else, string) is not None
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re_end_if = re.compile(r"^\s*end\s*if\s*(!.*)?$", flags=re.I)
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def end_if(self, string):
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return re.match(self.re_end_if, string) is not None
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re_begin_select = re.compile(r"^\s*select\s*case", flags=re.I)
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def begin_select(self, string):
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return re.match(self.re_begin_select, string) is not None
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re_case = re.compile(r"^\s*case\s*\(", flags=re.I)
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def case(self, string):
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return re.match(self.re_case, string) is not None
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re_end_select = re.compile(r"^\s*end\s*select\s*(!.*)?$", flags=re.I)
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def end_select(self, string):
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return re.match(self.re_end_select, string) is not None
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re_continuation = re.compile(r"^\s*\S+.*&")
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def continuation(self, string):
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return re.match(self.re_continuation, string) is not None
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re_declaration = re.compile(r"^.*::.*$")
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def declaration(self, string):
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return re.match(self.re_declaration, string) is not None
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grep = Grep()
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class indent(object):
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def __init__(self):
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"""Run the program"""
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self.run()
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def format_declaration(self, string, n):
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l, r = string.split('::')
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return l.strip().ljust(n) + ' :: ' + r.strip()
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def format_continuation(self, string, n):
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buffer = string.split('&')
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if len(buffer) == 1:
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l = buffer[0]
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return l
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else:
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l, r = buffer
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return l.strip().ljust(69 - len(n)) + '&' + r.strip()
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def get_filename(self):
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"""The file name is the first argument"""
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if '_filename' not in self.__dict__:
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try:
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self._filename = sys.argv[1]
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except:
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self._filename = None
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return self._filename
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filename = property(fget=get_filename)
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def get_text(self):
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"""The text of the file is a list of lines"""
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if '_text' not in self.__dict__:
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if self.filename is not None:
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f = open(self.filename, 'r')
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self._text = f.read().splitlines()
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f.close()
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else:
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self._text = sys.stdin.read().splitlines()
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return self._text
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text = property(fget=get_text)
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def indentlevel(self, line):
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line = line.rstrip()
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k = 0
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if len(line) > 0:
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while line[k] == ' ':
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k += 1
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return k
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def run(self):
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lines = self.text
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indent0 = " " * self.indentlevel(self.text[0])
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k = indent0
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line = ""
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for i in range(len(self.text)):
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prevline = line
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line = self.text[i].strip()
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if grep.continuation(line):
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line = self.format_continuation(line, k)
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if grep.continuation(prevline):
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print k + 2 * tab + self.format_continuation(line, k + 2 * tab)
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continue
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if grep.begin_subroutine(line):
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print line
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k = indent0 + tab
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continue
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if grep.begin_function(line):
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print line
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k = indent0 + tab
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continue
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if grep.begin_program(line):
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print line
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k = indent0 + tab
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continue
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if grep.begin_provider(line):
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if line[0] != '&':
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k = indent0 + tab
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if grep.begin_provider(self.text[i + 1].strip()):
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print " " + line
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else:
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print line
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else:
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print line
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continue
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if grep.declaration(line):
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print k + self.format_declaration(line, 30)
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continue
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if grep.begin_do(line):
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print k + line
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k += tab
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continue
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if grep.begin_if(line):
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print k + line
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k += tab
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continue
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if grep.xelse(line):
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print k[:-tabn] + line
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continue
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if grep.begin_select(line):
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print k + line
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k += 2 * tab
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continue
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if grep.case(line):
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print k[:-tabn] + line
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continue
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if grep.end_do(line):
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k = k[:-tabn]
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print k + line
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continue
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if grep.end_if(line):
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k = k[:-tabn]
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print k + line
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continue
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if grep.end_select(line):
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k = k[:-2 * tabn]
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print k + line
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continue
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if grep.end_subroutine(line):
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print line
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k = indent0
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continue
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if grep.end_function(line):
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print line
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k = indent0
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continue
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if grep.end_provider(line):
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print line
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k = indent0
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continue
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if grep.end_program(line):
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print line
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k = indent0
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continue
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print k + line
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def main():
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indent()
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if __name__ == '__main__':
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main()
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