Readline interface: Difference between revisions
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=={{header|REXX}}== |
=={{header|REXX}}== |
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This REXX programs supports a REDO (re-do) with very limited editing to keep the program simple. |
This REXX programs supports a '''REDO''' (re-do) with very limited editing to keep the program simple. |
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<br>It has a history (which can be interrogated) and some of the simple (MS) DOS commands. |
<br>It has a history (which can be interrogated) and some of the simple (MS) DOS commands. |
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<br>The HELP (?), REDO, error checking, and abbreviations took up most of the program. |
<br>The HELP (or '''?'''), REDO, error checking, and abbreviations took up most of the program. |
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<br>"User" commands (subroutines) are identified with a leading period (.) to make it easier to understand what's what. |
<br>"User" commands (subroutines) are identified with a leading period ('''.''') to make it easier to understand what's what. |
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<lang rexx>/*REXX program implements a simple "readline" shell (modeled after a DOS shell). */ |
<lang rexx>/*REXX program implements a simple "readline" shell (modeled after a DOS shell). */ |
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trace off /*suppress echoing of non-zero retCodes*/ |
trace off /*suppress echoing of non-zero retCodes*/ |
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<br>The '''LINESIZE.REX''' REXX program is included here ──► [[LINESIZE.REX]].<br> |
<br>The '''LINESIZE.REX''' REXX program is included here ──► [[LINESIZE.REX]].<br> |
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Some older REXXes don't have a '''changestr''' BIF, so one is included here ──► [[CHANGESTR.REX]]. |
Some older REXXes don't have a '''changestr''' BIF, so one is included here ──► [[CHANGESTR.REX]]. |
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<br><br> |
<br><br> |
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'''output''' showing a sample session: |
'''output''' showing a sample session: |
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