Linux and UNIX Man Pages

Linux & Unix Commands - Search Man Pages

z88dk-copt(1) [debian man page]

copt(1) 							z88 Development Kit							   copt(1)

NAME
copt - peephole optimizer SYSNOPIS
copt file ... DESCRIPTION
copt is a general-purpose peephole optimizer. It reads code from its standard input and writes an improved version to its standard output. copy reads the named files for its optimizations, which are encoded as follows: <pattern for input line 1> <pattern for input line 2> ... <pattern for input line n> = <pattern for output line 1> <pattern for output line 2> ... <pattern for output line m> <blank line> Pattern matching uses literal string comparison, with one exception: ``%%'' matches the ``%'' character, and ``%'' followed by a digit matches everything up to the next occurrence of the next pattern character, though all occurrences of %n must denote the same string. For example, the pattern ``%1=%1.'' matches exactly those strings that begin with a string X, followed by a ``='' (the first), followed by a second occurrence of X, followed by a period. In this way, the input/output pattern mov $%1,r%2 mov *r%2,r%2 = mov %1,r%2 commands copt to replace runs like mov $_a,r3 mov *r3,r3 with mov _a,r3 Note that a tab or newline can terminate a %n variable. copt compares each run of input patterns with the current input instruction and its predecessors. If no match is found, it advances to the next input instruction and tries again. Otherwise, it replaces the input instructions with the corresponding output patterns, pattern vari- ables instantiated,and resumes its search with the first instruction of the replacement. copt matches input patterns in reverse order to cascade optimizations without backing up. BUGS
Errors in optimization files are always possible. SEE ALSO
z88dk(1), z88dk-zcc(1), z88dk-z80asm(1), z88dk-appmake(1), z88dk-copt(1). AUTHOR
z88dk was written by Dominic Morris <dom@z88dk.org>, and others. 01 December 2009 copt(1)

Check Out this Related Man Page

FNMATCH(3)						     Linux Programmer's Manual							FNMATCH(3)

NAME
fnmatch - match filename or pathname SYNOPSIS
#include <fnmatch.h> int fnmatch(const char *pattern, const char *string, int flags); DESCRIPTION
The fnmatch() function checks whether the string argument matches the pattern argument, which is a shell wildcard pattern. The flags argument modifies the behavior; it is the bitwise OR of zero or more of the following flags: FNM_NOESCAPE If this flag is set, treat backslash as an ordinary character, instead of an escape character. FNM_PATHNAME If this flag is set, match a slash in string only with a slash in pattern and not by an asterisk (*) or a question mark (?) metacharacter, nor by a bracket expression ([]) containing a slash. FNM_PERIOD If this flag is set, a leading period in string has to be matched exactly by a period in pattern. A period is considered to be leading if it is the first character in string, or if both FNM_PATHNAME is set and the period immediately follows a slash. FNM_FILE_NAME This is a GNU synonym for FNM_PATHNAME. FNM_LEADING_DIR If this flag (a GNU extension) is set, the pattern is considered to be matched if it matches an initial segment of string which is followed by a slash. This flag is mainly for the internal use of glibc and is implemented only in certain cases. FNM_CASEFOLD If this flag (a GNU extension) is set, the pattern is matched case-insensitively. FNM_EXTMATCH If this flag (a GNU extension) is set, extended patterns are supported, as introduced by 'ksh' and now supported by other shells. The extended format is as follows, with pattern-list being a '|' separated list of patterns. '?(pattern-list)' The pattern matches if zero or one occurrences of any of the patterns in the pattern-list match the input string. '*(pattern-list)' The pattern matches if zero or more occurrences of any of the patterns in the pattern-list match the input string. '+(pattern-list)' The pattern matches if one or more occurrences of any of the patterns in the pattern-list match the input string. '@(pattern-list)' The pattern matches if exactly one occurrence of any of the patterns in the pattern-list match the input string. '!(pattern-list)' The pattern matches if the input string cannot be matched with any of the patterns in the pattern-list. RETURN VALUE
Zero if string matches pattern, FNM_NOMATCH if there is no match or another nonzero value if there is an error. ATTRIBUTES
For an explanation of the terms used in this section, see attributes(7). +----------+---------------+--------------------+ |Interface | Attribute | Value | +----------+---------------+--------------------+ |fnmatch() | Thread safety | MT-Safe env locale | +----------+---------------+--------------------+ CONFORMING TO
POSIX.1-2001, POSIX.1-2008, POSIX.2. The FNM_FILE_NAME, FNM_LEADING_DIR, and FNM_CASEFOLD flags are GNU extensions. SEE ALSO
sh(1), glob(3), scandir(3), wordexp(3), glob(7) COLOPHON
This page is part of release 4.15 of the Linux man-pages project. A description of the project, information about reporting bugs, and the latest version of this page, can be found at https://www.kernel.org/doc/man-pages/. GNU
2015-12-28 FNMATCH(3)
Man Page