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openinc.lx
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1998-02-24
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3KB
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92 lines
/* A REXX macro which will open PL/I include files. */
/* This macro is a prototype and has a number of development needs: */
/* - the word INCLUDE must be on the same line as the name of the file. */
/* - it assumes that the file's extension will be .inc it does not have any way of */
/* predicting the contents of your 'extensions ' option when you actually compile */
/* - it presumes that the environment variable IBM.SYSLIB will be set to the value it */
/* will have when you actually compile */
/* - it searches the directories named by the IBM.SYSLIB environment varible to find */
/* the include file. */
/* Load the rexx utilities library. */
call RxFuncAdd 'SysLoadFuncs', 'RexxUtil', 'SysLoadFuncs'
call SysLoadFuncs
'extract content'
'extract fonts '
hit_include = 0 ;
i = 1 ;
do while ( i <= length(content) & hit_include = 0 ) ;
if datatype( substr(content,i,1) , 'Mixed Case' ) = 1 then
do ;
j = i ; /* Remember where the word starts. */
word = '' ;
do while ( i <= length(content) & datatype( substr(content,i,1) , 'Mixed Case' ) = 1 ) ;
word = word || substr(content,i,1) ;
i = i + 1 ;
end ;
if translate(word) = 'INCLUDE' then
/* Check that the parser thinks it's a keyword. */
if substr(fonts, j , length(word) ) = 'IIIIIII' then
hit_include = 1 ;
end ;
else
do ;
/* Throw away non word characters. */
do while ( i <= length(content) & datatype( substr(content,i,1) , 'Mixed Case' ) = 0 ) ;
i = i + 1 ;
end ;
end ;
end ;
if hit_include = 0 then
do ;
'msg Did not find an INCLUDE on this line.'
exit ;
end ;
/* Throw away blank characters. */
do while ( i <= length(content) & substr(content,i,1) = ' ' ) ;
word = word || substr(content,i,1) ;
i = i + 1 ;
end ;
/* Now we may have a comma separated list to process. */
i = i - 1 ;
do until ( i > length( content ) | substr(content,i,1) ¬= ',' )
i = i + 1 ;
/* Throw away blank characters. */
do while ( i <= length(content) & substr(content,i,1) = ' ' ) ;
word = word || substr(content,i,1) ;
i = i + 1 ;
end ;
/* Collect a word. */
word = '' ;
do while ( i <= length(content) & datatype( substr(content,i,1) , 'Alphanumeric' ) ) ;
word = word || substr(content,i,1) ;
i = i + 1 ;
end ;
filespec = SysSearchPath('IBM.SYSLIB' , word || '.inc' )
if filespec = '' then
'msg Unable to locate include file' word || '.inc'
else
'lx' filespec
/* Throw away blank characters. */
do while ( i <= length(content) & substr(content,i,1) = ' ' ) ;
word = word || substr(content,i,1) ;
i = i + 1 ;
end ;
end ;
'msg Includes opened' ;
exit ;