CWEB - release 4.11, 2023-12-03.

Features:

* Factor out 'cwebacromac.tex' with hypertext macros
* Support LuaTeX as backend engine

Fixes:

* Issue #45: Consistent formatting of terminal output
* Suppress reference to 'l. 0' in error messages

Finesses:

* Revert 'fputs' back to 'printf'
* Avoid shadow variables
* Updates in 'cwebman.tex'

Makefile

@@ -1,6 +1,6 @@
 # This file is part of CWEB.
 # It is distributed WITHOUT ANY WARRANTY, express or implied.
-# Version 4.10 --- August 2023
+# Version 4.11 --- December 2023
 
 # Copyright (C) 1987,1990,1993,2000 Silvio Levy and Donald E. Knuth
 
@@ -69,6 +69,7 @@ PDFTEX = dvipdfm
 #PDFTEX = pdftex
 #PDFTEX = xetex
 #PDFTEX = hitex
+#PDFTEX = luatex
 
 ##########  You shouldn't have to change anything after this point #######
 
@@ -77,15 +78,17 @@ CTANGLE = ./ctangle
 SOURCES = cweave.w common.w ctangle.w
 ALL =  common.w ctangle.w cweave.w prod.w \
 	Makefile README common.c common.h ctangle.c \
-	cwebman.tex cwebmac.tex comm-vms.ch ctang-vms.ch \
-	cweav-vms.ch comm-man.ch ctang-man.ch cweav-man.ch \
-	comm-pc.ch ctang-pc.ch cweav-pc.ch comm-amiga.ch \
+	cwebman.tex cwebacromac.tex cwebmac.tex \
+	cweb.1 cweb.el c++lib.w iso_types.w \
+	comm-man.ch ctang-man.ch cweav-man.ch \
 	comm-bs.ch ctang-bs.ch cweav-bs.ch makefile.bs \
+	comm-pc.ch ctang-pc.ch cweav-pc.ch comm-amiga.ch \
 	comm-ql.ch ctang-ql.ch cweav-ql.ch readme.ql \
+	comm-vms.ch ctang-vms.ch cweav-vms.ch \
 	comm-w32.ch ctang-w32.ch cweav-w32.ch \
-	comm-os2.ch comm-mac.ch cweb.1 cweb.el c++lib.w iso_types.w
+	comm-os2.ch comm-mac.ch
 
-.SUFFIXES: .dvi .tex .w .pdf
+.SUFFIXES: .dvi .tex .w .pdf .hnt
 
 .w.tex:
 	$(CWEAVE) $*
@@ -110,6 +113,12 @@ ALL =  common.w ctangle.w cweave.w prod.w \
 	 dvipdfm ) tex "\let\pdf+ \input $*"; dvipdfm $* ;; \
 	 pdftex ) pdftex $* ;; \
 	 xetex ) xetex $* ;; \
+	 luatex ) luatex $* ;; \
+	esac
+
+.w.hnt:
+	make $*.tex
+	case "$(PDFTEX)" in \
 	 hitex ) hitex $* ;; \
 	esac
 
@@ -178,6 +187,8 @@ install: all
 	$(CP) cweb.1 $(MANDIR)/cweb.$(MANEXT)
 	chmod 644 $(MANDIR)/cweb.$(MANEXT)
 	- mkdir $(MACROSDIR)
+	$(CP) cwebacromac.tex $(MACROSDIR)
+	chmod 644 $(MACROSDIR)/cwebacromac.tex
 	$(CP) cwebmac.tex $(MACROSDIR)
 	chmod 644 $(MACROSDIR)/cwebmac.tex
 	- mkdir $(EMACSDIR)
@@ -205,6 +216,6 @@ tarball:
 	tar zcvhf /tmp/cweb.tgz $(ALL) examples
 
 ctan:
-	git archive -o ~/cweb-4.10.zip --prefix=cweb/ cweb-4.10
+	git archive -o ~/cweb-4.11.zip --prefix=cweb/ cweb-4.11
 	make PDF=pdf usermanual
-	cd ..; zip -r ~/cweb-4.10.zip cweb/cwebman.pdf
+	cd ..; zip -r ~/cweb-4.11.zip cweb/cwebman.pdf

README

@@ -59,6 +59,7 @@ cweave-w32.ch
 cweave.w
 cweb.1
 cweb.el
+cwebacromac.tex
 cwebmac.tex
 cwebman.tex
 examples/

README.md

@@ -1,4 +1,4 @@
-# cweb 4.10
+# cweb 4.11
 
 people have been accumulating several decades of experience with
 [cweb](http://www-cs-faculty.stanford.edu/~uno/cweb.html), and we know that
@@ -15,7 +15,7 @@ details in the
 [releases description](https://github.com/ascherer/cweb/releases).
 
 you can either compile these sources as directed in the
-[readme file](README) or stick the recent version “cweb-4.10” into my
+[readme file](README) or stick the recent version “cweb-4.11” into my
 [cwebbin](https://github.com/ascherer/cwebbin), which introduces convenient
 extensions and prepares cweb for inclusion in the “tex live” distribution.
 

comm-mac.ch

@@ -4,9 +4,9 @@ No changes to CTANGLE or CWEAVE are needed.
 (Contributed 13 Oct 2000 by AndPio@aol.com; slightly edited by Don Knuth)
 
 @x in limbo, change the title page document to specify Mac version
-  \centerline{(Version 4.10)}
+  \centerline{(Version 4.11)}
 @y
-  \centerline{(Version 4.10 for MacOS)}
+  \centerline{(Version 4.11 for MacOS)}
 @z
 
 @x section 23: Make input_ln accept \n, \r, \n\r, or \r\n as line endings

comm-ql.ch

@@ -10,24 +10,24 @@ ex <dev_>cc;'-v -h -c -=500000 -DCWEBINPUTS=flp2_ common_c'
 @x
 \def\v{\char'174} % vertical (|) in typewriter font
 
-\def\title{Common code for CTANGLE and CWEAVE (Version 4.10)}
+\def\title{Common code for CTANGLE and CWEAVE (Version 4.11)}
 \def\topofcontents{\null\vfill
   \centerline{\titlefont Common code for {\ttitlefont CTANGLE} and
     {\ttitlefont CWEAVE}}
   \vskip 15pt
-  \centerline{(Version 4.10)}
+  \centerline{(Version 4.11)}
   \vfill}
 \def\botofcontents{\vfill
 \noindent
 @y
 \def\v{\char'174} % vertical (|) in typewriter font
 
-\def\title{Common code for CTANGLE and CWEAVE (QL Version 4.10)}
+\def\title{Common code for CTANGLE and CWEAVE (QL Version 4.11)}
 \def\topofcontents{\null\vfill
   \centerline{\titlefont Common code for {\ttitlefont CTANGLE} and
     {\ttitlefont CWEAVE}}
   \vskip 15pt
-  \centerline{(Version 4.10)}
+  \centerline{(Version 4.11)}
   \vfill}
 \def\botofcontents{\vfill
 \noindent
@@ -152,8 +152,10 @@ the routine as if it would work.
   }
   sprintf(alt_web_file_name,"%s.web",*argv);
   sprintf(tex_file_name,"%s.tex",name_pos); /* strip off directory name */
-  sprintf(idx_file_name,"%s.idx",name_pos);
-  sprintf(scn_file_name,"%s.scn",name_pos);
+  if (make_xrefs) { /* indexes will be generated */
+    sprintf(idx_file_name,"%s.idx",name_pos);
+    sprintf(scn_file_name,"%s.scn",name_pos);
+  }
   sprintf(C_file_name,"%s.c",name_pos);
   found_web=true;
 }
@@ -170,8 +172,10 @@ the routine as if it would work.
   }
   sprintf(alt_web_file_name,"%s_web",*argv);
   sprintf(tex_file_name,"%s_tex",name_pos); /* strip off directory name */
-  sprintf(idx_file_name,"%s_idx",name_pos);
-  sprintf(scn_file_name,"%s_scn",name_pos);
+  if (make_xrefs) { /* indexes will be generated */
+    sprintf(idx_file_name,"%s_idx",name_pos);
+    sprintf(scn_file_name,"%s_scn",name_pos);
+  }
   sprintf(C_file_name,"%s_c",name_pos);
   found_web=true;
 }