compat
Portable (mostly standard) implementations of some Gforth features
- raw README
- raw anslocal.fs
- raw assert.fs
- raw caseext.fs
- raw control.fs
- raw defer.fs
- raw exception.fs
- raw execute-parsing.fs
- raw loops.fs
- raw macros.fs
- raw package.4th
- raw required.fs
- raw strcomp.fs
- raw struct.fs
- raw vocabulary.fs
- raw xlocals.fs
\ implementation of ]] ... [[ \ This file is in the public domain. NO WARRANTY. \ Avoid having to write so many POSTPONEs; Instead of \ POSTPONE a POSTPONE b POSTPONE c \ write \ ]] a b c [[ \ In addition there are some shortcuts for literals (not present in \ Gforth 0.7.0 and earlier): \ 1 ]]L is equivalent to 1 ]] literal \ 1. ]]2L is equivalent to 1. ]] 2literal \ 1e ]]FL is equivalent to 1e ]] fliteral \ parse-name foo ]]SL is equivalent to parse-name foo ]] sliteral \ This program uses the following words \ from CORE : \ environment? drop : BEGIN >in @ dup 0= WHILE 2drop and REPEAT ; ! \ POSTPONE immediate Literal \ from BLOCK-EXT : \ \ \ from DOUBLE : \ 2Literal \ from EXCEPTION : \ throw \ from FILE : \ S" ( \ from FILE-EXT : \ refill \ from FLOAT : \ FLiteral \ from STRING : \ compare SLiteral \ from X:parse-name : \ parse-name s" X:parse-name" environment? drop \ just let the system know that we need it : refilling-parse-name ( -- old->in c-addr u ) begin >in @ parse-name dup 0= while 2drop drop refill 0= -39 and throw repeat ; : ]] ( -- ) \ switch into postpone state begin refilling-parse-name s" [[" compare while >in ! POSTPONE postpone repeat drop ; immediate : postpone-literal postpone literal ; : postpone-2literal postpone 2literal ; : postpone-fliteral postpone fliteral ; : postpone-sliteral postpone sliteral ; : ]]L ( postponing: x -- ; compiling: -- x ) \ Shortcut for @code{]] literal}. ]] postpone-literal ]] [[ ; immediate : ]]2L ( postponing: x1 x2 -- ; compiling: -- x1 x2 ) \ Shortcut for @code{]] 2literal}. ]] postpone-2literal ]] [[ ; immediate : ]]FL ( postponing: r -- ; compiling: -- r ) \ Shortcut for @code{]] fliteral}. ]] postpone-fliteral ]] [[ ; immediate : ]]SL ( postponing: addr1 u -- ; compiling: -- addr2 u ) \ Shortcut for @code{]] sliteral}; if the string already has been \ allocated permanently, you can use @code{]]2L} instead. ]] postpone-sliteral ]] [[ ; immediate
by AntonErtl
Versions
Tags
forth-94, forth-2012, strings, gforth, locals, assertions, control-structures, macros
Dependencies
None
Dependents
None