src/algebra/

2007-12-03  Gabriel Dos Reis  <gdr@cs.tamu.edu>

	* script-parser.spad: New.
	* Makefile.pamphlet (axiom_algebra_layer_19): Include PARSER.o
	(PARSER.NRLIB/code.$(FASLEXT)): New rule.
	* exposed.lsp.pamphlet: Expose Parser constructor.

src/interp/
2007-12-03  Gabriel Dos Reis  <gdr@cs.tamu.edu>

	* i-parser.boot: New.
	* Makefile.pamphlet (i-parser.$(FASLEXT)): New rule.
	(OBJS): Include i-parser.$(FASLEXT).

1 files changed, 79 insertions, 0 deletions

diff --git a/src/interp/i-parser.boot b/src/interp/i-parser.boot
new file mode 100644
index 00000000..e4041438
--- /dev/null
+++ b/src/interp/i-parser.boot
@@ -0,0 +1,79 @@
+-- Copyright (C) 2007, Gabriel Dos Reis.
+-- All rights reserved.
+--
+-- Redistribution and use in source and binary forms, with or without
+-- modification, are permitted provided that the following conditions are
+-- met:
+--
+--     - Redistributions of source code must retain the above copyright
+--       notice, this list of conditions and the following disclaimer.
+--
+--     - Redistributions in binary form must reproduce the above copyright
+--       notice, this list of conditions and the following disclaimer in
+--       the documentation and/or other materials provided with the
+--       distribution.
+--
+--     - Neither the name of The Numerical ALgorithms Group Ltd. nor the
+--       names of its contributors may be used to endorse or promote products
+--       derived from this software without specific prior written permission.
+--
+-- THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+-- IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+-- TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+-- PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER
+-- OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+-- EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+-- PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+-- PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+-- LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+-- NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+-- SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+--%
+--% This file provides interface to the interperter parser (which is
+--% different from the compiler parser).  A higher level interface
+--% to these low level facilities exists in the algrebra as domain Parser.
+--%
+
+import '"cparse"
+import '"pf2sex"
+)package "BOOT"
+
+++ returns the list of tokens making up a line in the stream `s'
+tokenizeLine s ==
+  [dq, stream]  := car s
+  [lines, rest] := ncloopDQlines(dq, $lines)
+  setCurrentLine(mkLineList lines)
+  $lines := rest
+  [[npParse dqToList dq], :cdr s]
+
+++ parse the IO stream `s' obtained from file `f'
+parseStream(s, f) ==
+  $lines := incStream(s, f)
+  collectParsedLines(
+    next(function tokenizeLine,
+      next(function insertpile,
+        next(function lineoftoks, $lines))), nil)
+
+++ return the list of all tokens making up the stream `s'
+collectTokens s ==
+  StreamNull s => nil
+  ts := car s
+  [ts, :collectTokens cdr s]
+
+++ return the list of parsed lines from stream `s'.  `p' is the list
+++ of parsed lines collected so far.
+collectParsedLines(s, p) ==
+  StreamNull s => p
+  ptree := car s
+  collectParsedLines(cdr s, [:p, ptree])
+
+++ parse the whole file `file'.  Returns a list of parse tree
+++ containing full source location information.
+parseInputFile file ==
+  WITH_-OPEN_-FILE(st file, parseStream(st, file))
+
+++ Same as parseInputFile, but returns a parse form, instead of
+++ of a parse tree, i.e. source location information left out.
+getParseFormsFromFile file ==
+  [zeroOneTran packageTran pf2Sex t for t in parseInputFile file]