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Diffstat (limited to 'gcc-4.2.1/gcc/ada/krunch.ads')
| -rw-r--r-- | gcc-4.2.1/gcc/ada/krunch.ads | 137 |
1 files changed, 0 insertions, 137 deletions
diff --git a/gcc-4.2.1/gcc/ada/krunch.ads b/gcc-4.2.1/gcc/ada/krunch.ads deleted file mode 100644 index f5dbdb9a8..000000000 --- a/gcc-4.2.1/gcc/ada/krunch.ads +++ /dev/null @@ -1,137 +0,0 @@ ------------------------------------------------------------------------------- --- -- --- GNAT COMPILER COMPONENTS -- --- -- --- K R U N C H -- --- -- --- S p e c -- --- -- --- Copyright (C) 1992-2005, Free Software Foundation, Inc. -- --- -- --- GNAT is free software; you can redistribute it and/or modify it under -- --- terms of the GNU General Public License as published by the Free Soft- -- --- ware Foundation; either version 2, or (at your option) any later ver- -- --- sion. GNAT is distributed in the hope that it will be useful, but WITH- -- --- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY -- --- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License -- --- for more details. You should have received a copy of the GNU General -- --- Public License distributed with GNAT; see file COPYING. If not, write -- --- to the Free Software Foundation, 51 Franklin Street, Fifth Floor, -- --- Boston, MA 02110-1301, USA. -- --- -- --- As a special exception, if other files instantiate generics from this -- --- unit, or you link this unit with other files to produce an executable, -- --- this unit does not by itself cause the resulting executable to be -- --- covered by the GNU General Public License. This exception does not -- --- however invalidate any other reasons why the executable file might be -- --- covered by the GNU Public License. -- --- -- --- GNAT was originally developed by the GNAT team at New York University. -- --- Extensive contributions were provided by Ada Core Technologies Inc. -- --- -- ------------------------------------------------------------------------------- - --- This procedure implements file name crunching - --- First, the name is divided into segments separated by minus signs and --- underscores, then all minus signs and underscores are eliminated. If --- this leaves the name short enough, we are done. - --- If not, then the longest segment is located (left-most if there are --- two of equal length), and shortened by dropping its last character. --- This is repeated until the name is short enough. - --- As an example, consider the krunch of our-strings-wide_fixed.adb --- to fit the name into 8 characters as required by DOS: - --- our-strings-wide_fixed 22 --- our strings wide fixed 19 --- our string wide fixed 18 --- our strin wide fixed 17 --- our stri wide fixed 16 --- our stri wide fixe 15 --- our str wide fixe 14 --- our str wid fixe 13 --- our str wid fix 12 --- ou str wid fix 11 --- ou st wid fix 10 --- ou st wi fix 9 --- ou st wi fi 8 - --- Final file name: OUSTWIFX.ADB - --- A special rule applies for children of System, Ada, Gnat, and Interfaces. --- In these cases, the following special prefix replacements occur: - --- ada- replaced by a- --- gnat- replaced by g- --- interfaces- replaced by i- --- system- replaced by s- - --- The rest of the name is krunched in the usual manner described above. --- In addition, these names, as well as the names of the renamed packages --- from the obsolescent features annex, are always krunched to 8 characters --- regardless of the setting of Maxlen. - --- As an example of this special rule, consider ada-strings-wide_fixed.adb --- which gets krunched as follows: - --- ada-strings-wide_fixed 22 --- a- strings wide fixed 18 --- a- string wide fixed 17 --- a- strin wide fixed 16 --- a- stri wide fixed 15 --- a- stri wide fixe 14 --- a- str wide fixe 13 --- a- str wid fixe 12 --- a- str wid fix 11 --- a- st wid fix 10 --- a- st wi fix 9 --- a- st wi fi 8 - --- Final file name: A-STWIFX.ADB - --- Since children of units named A, G, I or S might conflict with the names --- of predefined units, the naming rule in that case is that the first hyphen --- is replaced by a tilde sign. - --- Note: as described below, this special treatment of predefined library --- unit file names can be inhibited by setting the No_Predef flag. - --- Of course there is no guarantee that this algorithm results in uniquely --- crunched names (nor, obviously, is there any algorithm which would do so) --- In fact we run into such a case in the standard library routines with --- children of Wide_Text_IO, so a special rule is applied to deal with this --- clash, namely the prefix ada-wide_text_io- is replaced by a-wt- and then --- the normal crunching rules are applied, so that for example, the unit: - --- Ada.Wide_Text_IO.Float_IO - --- has the file name - --- a-wtflio - --- More problems arise with Wide_Wide, so we replace this sequence by --- a z (which is not used much) and also (as in the Wide_Text_IO case), --- we replace the prefix ada.wide_wide_text_io- by a-zt- and then --- the normal crunching rules are applied. - --- These are the only irregularity required (so far!) to keep the file names --- unique in the standard predefined libraries. - -procedure Krunch - (Buffer : in out String; - Len : in out Natural; - Maxlen : Natural; - No_Predef : Boolean); -pragma Elaborate_Body (Krunch); --- The full file name is stored in Buffer (1 .. Len) on entry. The file --- name is crunched in place and on return Len is updated, so that the --- resulting krunched name is in Buffer (1 .. Len) where Len <= Maxlen. --- Note that Len may be less than or equal to Maxlen on entry, in which --- case it may be possible that Krunch does not modify Buffer. The fourth --- parameter, No_Predef, is a switch which, if set to True, disables the --- normal special treatment of predefined library unit file names. --- --- Note: the string Buffer must have a lower bound of 1, and may not --- contain any blanks (in particular, it must not have leading blanks). |