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      1 #---------------------------------------------------------------------------
      2 #
      3 # xc-translit.m4
      4 #
      5 # Copyright (c) 2011 Daniel Stenberg <daniel (a] haxx.se>
      6 #
      7 # Permission to use, copy, modify, and distribute this software for any
      8 # purpose with or without fee is hereby granted, provided that the above
      9 # copyright notice and this permission notice appear in all copies.
     10 #
     11 # THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
     12 # WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
     13 # MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
     14 # ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
     15 # WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
     16 # ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
     17 # OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
     18 #
     19 #---------------------------------------------------------------------------
     20 
     21 # File version for 'aclocal' use. Keep it a single number.
     22 # serial 2
     23 
     24 
     25 dnl XC_SH_TR_SH (expression)
     26 dnl -------------------------------------------------
     27 dnl Shell execution time transliteration of 'expression'
     28 dnl argument, where all non-alfanumeric characters are
     29 dnl converted to the underscore '_' character.
     30 dnl Normal shell expansion and substitution takes place
     31 dnl for given 'expression' at shell execution time before
     32 dnl transliteration is applied to it.
     33 
     34 AC_DEFUN([XC_SH_TR_SH],
     35 [`echo "$1" | sed 's/[[^a-zA-Z0-9_]]/_/g'`])
     36 
     37 
     38 dnl XC_SH_TR_SH_EX (expression, [extra])
     39 dnl -------------------------------------------------
     40 dnl Like XC_SH_TR_SH but transliterating characters
     41 dnl given in 'extra' argument to lowercase 'p'. For
     42 dnl example [*+], [*], and [+] are valid 'extra' args.
     43 
     44 AC_DEFUN([XC_SH_TR_SH_EX],
     45 [ifelse([$2], [],
     46   [XC_SH_TR_SH([$1])],
     47   [`echo "$1" | sed 's/[[$2]]/p/g' | sed 's/[[^a-zA-Z0-9_]]/_/g'`])])
     48 
     49 
     50 dnl XC_M4_TR_SH (expression)
     51 dnl -------------------------------------------------
     52 dnl m4 execution time transliteration of 'expression'
     53 dnl argument, where all non-alfanumeric characters are
     54 dnl converted to the underscore '_' character.
     55 
     56 AC_DEFUN([XC_M4_TR_SH],
     57 [patsubst(XC_QPATSUBST(XC_QUOTE($1),
     58                        [[^a-zA-Z0-9_]], [_]),
     59           [\(_\(.*\)_\)], [\2])])
     60 
     61 
     62 dnl XC_M4_TR_SH_EX (expression, [extra])
     63 dnl -------------------------------------------------
     64 dnl Like XC_M4_TR_SH but transliterating characters
     65 dnl given in 'extra' argument to lowercase 'p'. For
     66 dnl example [*+], [*], and [+] are valid 'extra' args.
     67 
     68 AC_DEFUN([XC_M4_TR_SH_EX],
     69 [ifelse([$2], [],
     70   [XC_M4_TR_SH([$1])],
     71   [patsubst(XC_QPATSUBST(XC_QPATSUBST(XC_QUOTE($1),
     72                                       [[$2]],
     73                                       [p]),
     74                          [[^a-zA-Z0-9_]], [_]),
     75             [\(_\(.*\)_\)], [\2])])])
     76 
     77 
     78 dnl XC_SH_TR_CPP (expression)
     79 dnl -------------------------------------------------
     80 dnl Shell execution time transliteration of 'expression'
     81 dnl argument, where all non-alfanumeric characters are
     82 dnl converted to the underscore '_' character and alnum
     83 dnl characters are converted to uppercase.
     84 dnl Normal shell expansion and substitution takes place
     85 dnl for given 'expression' at shell execution time before
     86 dnl transliteration is applied to it.
     87 
     88 AC_DEFUN([XC_SH_TR_CPP],
     89 [`echo "$1" | dnl
     90 sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | dnl
     91 sed 's/[[^A-Z0-9_]]/_/g'`])
     92 
     93 
     94 dnl XC_SH_TR_CPP_EX (expression, [extra])
     95 dnl -------------------------------------------------
     96 dnl Like XC_SH_TR_CPP but transliterating characters
     97 dnl given in 'extra' argument to uppercase 'P'. For
     98 dnl example [*+], [*], and [+] are valid 'extra' args.
     99 
    100 AC_DEFUN([XC_SH_TR_CPP_EX],
    101 [ifelse([$2], [],
    102   [XC_SH_TR_CPP([$1])],
    103   [`echo "$1" | dnl
    104 sed 's/[[$2]]/P/g' | dnl
    105 sed 'y/abcdefghijklmnopqrstuvwxyz/ABCDEFGHIJKLMNOPQRSTUVWXYZ/' | dnl
    106 sed 's/[[^A-Z0-9_]]/_/g'`])])
    107 
    108 
    109 dnl XC_M4_TR_CPP (expression)
    110 dnl -------------------------------------------------
    111 dnl m4 execution time transliteration of 'expression'
    112 dnl argument, where all non-alfanumeric characters are
    113 dnl converted to the underscore '_' character and alnum
    114 dnl characters are converted to uppercase.
    115 
    116 AC_DEFUN([XC_M4_TR_CPP],
    117 [patsubst(XC_QPATSUBST(XC_QTRANSLIT(XC_QUOTE($1),
    118                                     [abcdefghijklmnopqrstuvwxyz],
    119                                     [ABCDEFGHIJKLMNOPQRSTUVWXYZ]),
    120                        [[^A-Z0-9_]], [_]),
    121           [\(_\(.*\)_\)], [\2])])
    122 
    123 
    124 dnl XC_M4_TR_CPP_EX (expression, [extra])
    125 dnl -------------------------------------------------
    126 dnl Like XC_M4_TR_CPP but transliterating characters
    127 dnl given in 'extra' argument to uppercase 'P'. For
    128 dnl example [*+], [*], and [+] are valid 'extra' args.
    129 
    130 AC_DEFUN([XC_M4_TR_CPP_EX],
    131 [ifelse([$2], [],
    132   [XC_M4_TR_CPP([$1])],
    133   [patsubst(XC_QPATSUBST(XC_QTRANSLIT(XC_QPATSUBST(XC_QUOTE($1),
    134                                                    [[$2]],
    135                                                    [P]),
    136                                       [abcdefghijklmnopqrstuvwxyz],
    137                                       [ABCDEFGHIJKLMNOPQRSTUVWXYZ]),
    138                          [[^A-Z0-9_]], [_]),
    139             [\(_\(.*\)_\)], [\2])])])
    140 
    141 
    142 dnl XC_QUOTE (expression)
    143 dnl -------------------------------------------------
    144 dnl Expands to quoted result of 'expression' expansion.
    145 
    146 AC_DEFUN([XC_QUOTE],
    147 [[$@]])
    148 
    149 
    150 dnl XC_QPATSUBST (string, regexp[, repl])
    151 dnl -------------------------------------------------
    152 dnl Expands to quoted result of 'patsubst' expansion.
    153 
    154 AC_DEFUN([XC_QPATSUBST],
    155 [XC_QUOTE(patsubst([$1], [$2], [$3]))])
    156 
    157 
    158 dnl XC_QTRANSLIT (string, chars, repl)
    159 dnl -------------------------------------------------
    160 dnl Expands to quoted result of 'translit' expansion.
    161 
    162 AC_DEFUN([XC_QTRANSLIT],
    163 [XC_QUOTE(translit([$1], [$2], [$3]))])
    164 
    165