[uim-commit] r2029 - branches/r5rs/sigscheme/script

[yamaken at freedesktop.org]

Author: yamaken
Date: 2005-11-06 04:01:00 -0800 (Sun, 06 Nov 2005)
New Revision: 2029

Added:
   branches/r5rs/sigscheme/script/scm_decl.rb
Log:
* This commit provides another solution for the function table
  processing. This code uses real C function name instead of generated
  from Scheme procedure name, so safe and flexible. Please consider
  adoption.

* sigscheme/script/scm_decl.rb
  - New file
  - (SCM_DECL_RE): New constant
  - (String#scan_scm_decl): New method
  - (scm_func_table_entry, scm_func_register_exp,
    scm_generate_func_table_body, scm_generate_func_register_exps,
    scm_generate_func_prototypes): New function


Added: branches/r5rs/sigscheme/script/scm_decl.rb
===================================================================
--- branches/r5rs/sigscheme/script/scm_decl.rb	2005-11-06 07:54:43 UTC (rev 2028)
+++ branches/r5rs/sigscheme/script/scm_decl.rb	2005-11-06 12:01:00 UTC (rev 2029)
@@ -0,0 +1,106 @@
+#===========================================================================
+#  FileName : scm_decl.rb
+#  About    : a function declaration processing library for SigScheme
+#
+#  Copyright (C) 2005      by YamaKen <yamaken AT bp.iij4u.or.jp>
+#
+#  All rights reserved.
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  1. Redistributions of source code must retain the above copyright
+#     notice, this list of conditions and the following disclaimer.
+#  2. 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.
+#  3. Neither the name of authors 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 HOLDERS 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.
+#===========================================================================
+
+# $1  :prototype       ScmObj ScmOp_call_with_values(ScmObj producer, ScmObj consumer, ScmEvalState *eval_state)
+# $2  :ret             ScmObj
+# $3  :func            ScmOp_call_with_values
+# $4  :prefix          Op
+# $5  :func_body       call_with_values
+# $6  :args            ScmObj producer, ScmObj consumer, ScmEvalState *eval_state
+# $7  :proc            "call-with-values"
+# $8  :register_func   ProcedureFixedTailRec2
+# $9  :functype_prefix Procedure
+# $10 :functype_spec   FixedTailRec2
+SCM_DECL_RE = /\n((ScmObj)\s+(Scm(Op|Exp)_(.\w+))\(([^\{]+)\))[ \t]*\n\s*\{[^{}]+DECLARE_FUNCTION\(\s*\"([^\"]+)\"[\s,]+([^\s,]+)\)/m
+
+
+class String
+  def scan_scm_decl
+    res = []
+    scan(SCM_DECL_RE) { |prototype, ret, func, prefix, func_body, args, proc, register_func, functype_prefix, functype_spec|
+      decl = {
+        :prototype       => prototype.gsub(/\s+/, " "),
+        :ret             => ret,
+        :func            => func,
+        :prefix          => prefix,
+        :func_body       => func_body,
+        :args            => args.gsub(/\s+/, " "),
+        :proc            => proc,
+        :register_func   => "Scm_Register" + register_func,
+        :functype_prefix => functype_prefix,
+        :functype_spec   => functype_spec,
+      }
+      res.push(yield(decl))
+    }
+    res
+  end
+end
+
+def scm_func_table_entry(decl)
+  proc, func, register_func = decl.values_at(:proc, :func, :register_func)
+  "{ \"#{proc}\", (ScmBuiltinFunc)#{func}, (ScmRegisterFunc)#{register_func} }"
+end
+
+def scm_func_register_exp(decl)
+  proc, func, register_func = decl.values_at(:proc, :func, :register_func)
+  "#{register_func}(\"#{proc}\", #{func})"
+end
+
+def scm_generate_func_table_body(str)
+  str.scan_scm_decl { |decl|
+    entry = scm_func_table_entry(decl)
+    "    #{entry},\n"
+  }.join
+end
+
+def scm_generate_func_register_exps(str)
+  str.scan_scm_decl { |decl|
+    exp = scm_func_register_exp(decl)
+    "    #{exp};\n"
+  }.join
+end
+
+def scm_generate_func_prototypes(str)
+  str.scan_scm_decl { |decl|
+    "#{decl[:prototype]};\n"
+  }.join
+end
+
+
+# usage example
+
+#src = ARGF.read
+#print scm_generate_func_table_body(src)
+#print scm_generate_func_register_exps(src)
+#print scm_generate_func_prototypes(src)