91 lines
1.7 KiB
Markdown
91 lines
1.7 KiB
Markdown
MPW Shell
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---------
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MPW Shell is a re-implementation of the Macintosh Programmer's Workshop shell.
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The primary reason is to support MPW Make (which generated shell script). It
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may also be useful for other things.
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Supported features
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------------------
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* If ... [Else If] ... [Else] ... End
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* Begin ... End
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* Loop ... End
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* For name In [word...] ... End
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* Break [If], Continue [If], Exit [If]
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* ( ... )
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* ||
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* &&
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* Redirection
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* | "pipes" (via a temporary file. Presumably, that's what MPW did as well.)
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* Subshells (`...`, ``...``)
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Not (yet) supported
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-------------
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* aliases
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* regular expressions
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* text-editing commands (search forward/backward, et cetera)
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Builtin Commands
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----------------
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* AboutBox
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* Alias
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* Catenate
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* Directory
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* Echo
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* Evaluate
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* Execute
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* Exists
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* Export
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* Parameters
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* Quit
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* Quote
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* Set
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* Shift
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* Unalias
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* Unexport
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* Unset
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* Version
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* Which
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Setup
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-----
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1. Install MPW. The mpw binary should be somewhere in your `$PATH`.
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It also checks `/usr/local/bin/mpw` and `$HOME/mpw/bin/mpw`. You can
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use mpw-shell without it but only with builtin commands.
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2. Copy the `Startup` script to `$HOME/mpw/`. This script is executed
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when mpw-shell (or mpw-make) starts up (imagine that) and should
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be used to set environment variables.
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Command Line Flags
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------------------
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-D name=value Define environment variable
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-v Be verbose (equivalent to -Decho=1)
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-f Ignore the Startup script
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-c string Execute string
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-h Display help
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Build
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-----
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Standard CMake build sequence:
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```bash
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mkdir build
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cd build
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cmake ..
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make
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```
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After that, do the standard CMake install sequence in the same folder:
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```bash
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cmake --install
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```
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to install `mpw-shell` and `mpw-make` in `/usr/bin/local`.
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