#!/usr/bin/env python
# vim: set fileencoding=UTF-8 expandtab :
# Copyright 2010 Jonas Häggqvist <rasher@rasher.dk>
#
# BSD license up in this shiznit
# 
# Version 1.0
# Version 1.1
# - fraktur -> boldfraktur
# - add fraktur
# - add boldscript
# - add numbers to doublestruck
# Version 1.2
# - add bold
# - add italic
# - add bolditalic
# - add sans-serif
# - add boldsans-serif
# - add italicsans-serif
# - add bolditalicsans-serif
# - add monospace

import sys
import locale

ALLRANGES = {
        'bold': {
            (65, 90)  : 0x1D400,
            (97, 122) : 0x1D41A,
            (48, 57)  : 0x1D7CE,      # Digits
            (0x391, 0x3A1) : 0x1D6A8, # ALPHA-RHO
            (0x3A3, 0x3A9) : 0x1D6BA, # SIGMA-OMEGA
            (0x3B1, 0x3C9) : 0x1D6C2, # alpha-omega
            },
        'italic': {
            (65, 90)  : 0x1D434,
            (97, 122) : 0x1D44E,
            (0x391, 0x3A1) : 0x1D6E2, # ALPHA-RHO
            (0x3A3, 0x3A9) : 0x1D6F4, # SIGMA-OMEGA
            (0x3B1, 0x3C9) : 0x1D6FC, # alpha-omega
            },
        'bolditalic': {
            (65, 90)  : 0x1D468,
            (97, 122) : 0x1D482,
            (0x391, 0x3A1) : 0x1D71C, # ALPHA-RHO
            (0x3A3, 0x3A9) : 0x1D72E, # SIGMA-OMEGA
            (0x3B1, 0x3C9) : 0x1D736, # alpha-omega
            },
        'script': {
            (65, 90)  : 0x1D49C,
            (97, 122) : 0x1D4B6,
            },
        'boldscript': {
            (65, 90)  : 0x1D4D0,
            (97, 122) : 0x1D4EA,
            },
        'fraktur': {
            (65, 90)  : 0x1D504,
            (97, 122) : 0x1D51E,
            },
        'boldfraktur': {
            (65, 90)  : 0x1D56C,
            (97, 122) : 0x1D586,
            },
        'doublestruck': {
            (65, 90)  : 0x1D538,
            (97, 122) : 0x1D552,
            (48, 57)  : 0x1D7D8,
            },
        'sans-serif': {
            (65, 90)  : 0x1D5A0,
            (97, 122) : 0x1D5BA,
            (48, 57)  : 0x1D7E2,      # Digits
            },
        'boldsans-serif': {
            (65, 90)  : 0x1D5D4,
            (97, 122) : 0x1D5EE,
            (48, 57)  : 0x1D7EC,      # Digits
            (0x391, 0x3A1) : 0x1D756, # ALPHA-RHO
            (0x3A3, 0x3A9) : 0x1D768, # SIGMA-OMEGA
            (0x3B1, 0x3C9) : 0x1D770, # alpha-omega
            },
        'italicsans-serif': {
            (65, 90)  : 0x1D608,
            (97, 122) : 0x1D622,
            },
        'bolditalicsans-serif': {
            (65, 90)  : 0x1D63C,
            (97, 122) : 0x1D656,
            (0x391, 0x3A1) : 0x1D790, # ALPHA-RHO
            (0x3A3, 0x3A9) : 0x1D7A2, # SIGMA-OMEGA
            (0x3B1, 0x3C9) : 0x1D7AA, # alpha-omega
            },
        'monospace': {
            (65, 90)  : 0x1D670,
            (97, 122) : 0x1D68A,
            (48, 57)  : 0x1D7F6,      # Digits
            },
        }


def cursifychar(c, ranges):
    n = ord(c)
    for (start, end), offset in ranges.items():
        if n >= start and n <= end:
            return unichr(offset + (n - start))
    return c


def cursify(s, ranges):
    return u"".join(cursifychar(c, ranges) for c in s)


if __name__ == "__main__":
    encoding = locale.getpreferredencoding()

    if len(sys.argv) == 1:
        ranges = ALLRANGES['script']
    elif len(sys.argv) == 2 and sys.argv[1] in ALLRANGES:
        ranges = ALLRANGES[sys.argv[1]]
    else:
        rangenames = "[%s]" % "|".join(sorted(ALLRANGES.keys()))
        print "Usage: %s %s" % (sys.argv[0], rangenames)
        print "Converts characters from stdin to the given Unicode "
        print "character range."
        sys.exit(1)

    for line in sys.stdin:
        line = cursify(line.decode(encoding), ranges)
        sys.stdout.write(line.encode(encoding))