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posix-utils
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- Outdated egg!
- posix-utils
- Documentation
- terminal-info
- get-terminal-size
- get-terminal-name
- output-port-width
- output-port-height
- string-trim-eol
- software-eol-string
- environment-string
- environment-variables->environment-list
- qs*
- qs-quote
- qs-string
- qs-argument
- get-commandline-result
- get-command-result
- get-echo-result
- environment-variable-bound?
- environment-variable-true?
- register-environment-variable-feature!
- get-shell-variable
- shell-variable-bound?
- shell-variable-true?
- register-shell-variable-feature!
- Usage
- Author
- Version history
- License
Documentation
Miscellaneous Posix related routines.
terminal-info
- terminal-info #!optional PORTprocedure
Returns alist of terminal properties for PORT.
: PORT ; output-port ; current-output-port
Known terminal properties:
: name ; string : width ; fixnum : height ; fixnum
get-terminal-size
- get-terminal-size #!optional PORTprocedure
Returns terminal size or #f when PORT is not a terminal-port.
: PORT ; output-port
get-terminal-name
- get-terminal-name #!optional PORTprocedure
Returns terminal name or #f when PORT is not a terminal-port.
: PORT ; output-port
output-port-width
- output-port-width PORT #!optional DEFprocedure
Returns terminal width or DEF when PORT is not a terminal-port.
: PORT ; (or boolean output-port) ; current-output-port
output-port-height
- output-port-height PORT #!optional DEFprocedure
Returns terminal height or DEF when PORT is not a terminal-port.
: PORT ; (or boolean output-port)
string-trim-eol
- string-trim-eol STRprocedure
Removes last instance of the platform dependent EOL character sequence from the string STR.
software-eol-string
- software-eol-stringconstant
Platform dependent EOL character sequence string.
environment-string
- environment-string CELLprocedure
Returns "VAR=VAL", where VAR is (car CELL) & VAL is (cdr CELL).
environment-variables->environment-list
- environment-variables->environment-list EVSprocedure
Returns a list of "VAR=VAL" from the environment variables association-list EVS.
qs*
- (qs* STR [DELIM #\"]) -> stringprocedure
Result like (conc DELIM STR DELIM).
qs-quote
- qs-quote OBJprocedure
Returns "'OBJ'".
qs-string
- qs-string OBJprocedure
Returns ""OBJ"".
qs-argument
- (qs-argument OBJ [LITERAL? [DELIM #\"]]) -> stringprocedure
Returns a quoted, quasiquoted, or evaluated shell argument string.
An OBJ is
- '* (quote . *)
- quoted * unless LITERAL?
- `* (quasiquote . *)
- quasiquoted * unless LITERAL?
- *
- evaluated
A shell quote is
- quoted
- ' string '
- quasiquoted
- ` ,* (unquote *) | ,@* (unquote-splicing *) | * (quote) `
- evaluated
- " string "
A quasiquoted OBJ is
- ,* (unquote *)
- evaluated *
- ,@* (unquote-splicing *)
- evaluated * #\space ...
- * (quote)
- quoted *
get-commandline-result
- get-commandline-result CMND LINEprocedure
Returns the result of ''shell'' CMND LINE.
CMND is a string.
LINE is a string.
get-command-result
- get-command-result CMND ARG ...procedure
Returns the result of ''shell'' CMND ARG ....
CMND is a string.
ARG ... are string ... & processed by qs-argument.
get-echo-result
- get-echo-result EXPprocedure
Returns the result of echo "EXP", w/o the echo eol.
EXP is a string.
environment-variable-bound?
- environment-variable-bound? NAMEprocedure
Does the environment variable NAME exist with a non-null value?
NAME is a string.
FOO=1 BAR= csi -q -R posix-utils #;1> (environment-variable-bound? "FOO") #t #;2> (environment-variable-bound? "BAR") #f
environment-variable-true?
- (environment-variable-true? NAME [TRUTHS ("y" "yes" "1")]) -> booleanprocedure
Is the environment variable NAME lowercase value in TRUTHS?
NAME is a string. TRUTHS is a (list-of string) recognized as true values.
FOO=1 BAR= csi -q -R posix-utils #;1> (environment-variable-true? "FOO") #t #;2> (environment-variable-true? "BAR") #f
register-environment-variable-feature!
- register-environment-variable-feature! NAMEprocedure
Registers an existing NAME value as a feature. Returns #f or the registered feature symbol.
NAME is a string.
get-shell-variable
- get-shell-variable NAMEprocedure
Returns the shell variable NAME value.
NAME is a string.
shell-variable-bound?
- shell-variable-bound? NAMEprocedure
Does the shell variable NAME have a non-null value?
NAME is a string.
shell-variable-true?
- (shell-variable-true? NAME [TRUTHS ("y" "yes" "1")]) -> booleanprocedure
Is the shell variable NAME lowercase value in TRUTHS?
NAME is a string. TRUTHS is a (list-of string) recognized as true values.
register-shell-variable-feature!
- register-shell-variable-feature! NAMEprocedure
Registers an existing NAME value as a feature. Returns #f or the registered feature symbol.
NAME is a string.
#;1> (register-shell-variable-feature! "OSTYPE") darwin7 ;ymmv
Usage
(require-extension posix-utils)
Author
Version history
- 1.2.2
- Remove fx-utils dependency.
: 1.2.1 : Fix output-port-width & output-port-height. Add get-terminal-name. Change terminal-info alist.
- 1.2.0
- Added terminal-info, get-terminal-size, output-port-width, & output-port-height.
- 1.1.0
- Added string-trim-eol , software-eol-string, environment-variables->environment-list, register-environment-variable-feature!, get-shell-variable, shell-variable-bound?, shell-variable-true?, register-shell-variable-feature!
- 1.0.0
- Created.
License
Copyright (C) 2010-2018 Kon Lovett. All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the Software), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED ASIS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.