command-line arguments are no longer passed via the unnamed buffer, but via special Q-registers ^Ax

* The unnamed buffer is also used for reading from --stdin, so you couldn't practically combine
  --stdin with passing command-line arguments to macros.
* The old approach of passing command-line arguments via lines in the
  unnamed buffer was flawed anyway as it wouldn't work with filenames containing LF.
  This is just a very ancient feature, written when there weren't even long Q-reg names in SciTECO.
* You can now e.g. pipe into SciTECO and edit what was read interactively, e.g. `dmesg | sciteco -i`.
  You can practically use SciTECO as a pager.
* htbl.tes is now a command-line filter (uses -qio).
* grosciteco.tes reads Troff intermediate code from stdin, so we no longer need
  "*.intermediate" temporary files.
* added a getopt.tes test case to the testsuite.
* This change unfortunately breaks most macros accepting command-line arguments,
  even if they used getopt.tes.
  It also requires updating ~/.teco_ini - see fallback.teco_ini.

1 files changed, 14 insertions, 16 deletions

diff --git a/lib/opener.tes b/lib/opener.tes
index 98ce631..c0183c8 100644
--- a/lib/opener.tes
+++ b/lib/opener.tes
@@ -1,40 +1,38 @@
 !*$
- * M[opener] -- Open a number of files from the current buffer
+ * M[opener] -- Open files, specified on the command line
  *
- * This is usually the unnamed buffer as initialized from the command line.
  * It supports both the +line[,column] and filename:line[:column] syntaxes.
  * Since this may make it hard to open files with certain file names, all
  * filenames after "--" are interpreted verbatim.
+ * It does not change the current buffer.
  *!
-@[opener]{
-  <.-Z;
+@[opener]{ [*
+  <%.i :Q[
\.i]:; EQ[
\.i]
     !* --/-S stops processing of special arguments *!
-    0A--"= 1A--"= 2A-10"=
-      L <:L;R 0X.f [* EBN.f ]* L> 1;
+    0A--"= 1A--"= 2A"<
+      <%.i :Q[
\.i]:; EBN[
\.i]> 1;
     '''
 
     1U.l 1U.c
     !* +line[,column] *!
     0A-+"= C 0A"D
       \U.l <0A"DC|1;'> 0A-,"= C \U.c <0A"DC|1;'> '
-      0A-10"= 2LR Oopen '
-    ' '
+      0A"< %.i Oopen '
+    ''
 
     !* filename:line[:column][:] *!
-    LR -A-:"=R'
+    ZJ -A-:"=R'
     0U.p <-%.pA"D|1;'> Q.pA-:"=
       Q.p+1C \U.a R 0U.p <-%.pA"D|1;'> Q.pA-:"=
         Q.p+1C \U.l Q.aU.c R
       |
         Q.aU.l 1U.c
       '
-    |
-      LR
+      !* FIXME: modifies the 
i *!
+      .,ZD
     '
 
   !open!
-    0X.f [*
-      EBN.f Q.c-1,Q.l-1ESFINDCOLUMN:J
-    ]*
-  L>
-}
+    EBN[
\.i] Q.c-1,Q.l-1ESFINDCOLUMN:J
+  >
+]* }