To make the shell-command-on-region and this command behave
like that requires another diff.
mark
On Wed, May 22, 2013 at 09:32:45AM +0200, Jasper Lievisse Adriaanse wrote:
> On Tue, May 21, 2013 at 07:54:31PM +0000, Mark Lumsden wrote:
> > This diff modifies the shell-command-on-region function and gives us
> > shell-command. It makes getting output from other commands into mg
> > really easy. Comments/oks?
> >
> > -lum
>
> It seems Emacs doesn't split the window if the output from the command is only
> a single line (like 'date'), which is behaviour I quite like if you want to
> check something small.
>
> > Index: def.h
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/mg/def.h,v
> > retrieving revision 1.135
> > diff -u -p -r1.135 def.h
> > --- def.h 25 Mar 2013 11:41:44 -0000 1.135
> > +++ def.h 21 May 2013 19:46:38 -0000
> > @@ -592,6 +592,7 @@ int region_get_data(struct region *, c
> > void region_put_data(const char *, int);
> > int markbuffer(int, int);
> > int piperegion(int, int);
> > +int shellcommand(int, int);
> > int pipeio(const char * const, char * const[], char *
> > const, int,
> > struct buffer *);
> >
> > Index: funmap.c
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/mg/funmap.c,v
> > retrieving revision 1.45
> > diff -u -p -r1.45 funmap.c
> > --- funmap.c 27 Dec 2012 18:51:52 -0000 1.45
> > +++ funmap.c 21 May 2013 19:46:38 -0000
> > @@ -179,6 +179,7 @@ static struct funmap functnames[] = {
> > {setfillcol, "set-fill-column",},
> > {setmark, "set-mark-command",},
> > {setprefix, "set-prefix-string",},
> > + {shellcommand, "shell-command",},
> > {piperegion, "shell-command-on-region",},
> > {shrinkwind, "shrink-window",},
> > #ifdef NOTAB
> > Index: keymap.c
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/mg/keymap.c,v
> > retrieving revision 1.50
> > diff -u -p -r1.50 keymap.c
> > --- keymap.c 7 Jun 2012 15:15:04 -0000 1.50
> > +++ keymap.c 21 May 2013 19:46:38 -0000
> > @@ -217,8 +217,9 @@ static PF metacV[] = {
> > pagenext /* ^V */
> > };
> >
> > -static PF metasp[] = {
> > - justone /* space */
> > +static PF metaspex[] = {
> > + justone, /* space */
> > + shellcommand /* ! */
> > };
> >
> > static PF metapct[] = {
> > @@ -317,7 +318,7 @@ struct KEYMAPE (8 + IMAPEXT) metamap = {
> > CCHR('V'), CCHR('V'), metacV, NULL
> > },
> > {
> > - ' ', ' ', metasp, NULL
> > + ' ', '!', metaspex, NULL
> > },
> > {
> > '%', '%', metapct, NULL
> > Index: mg.1
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/mg/mg.1,v
> > retrieving revision 1.75
> > diff -u -p -r1.75 mg.1
> > --- mg.1 28 Dec 2012 16:12:50 -0000 1.75
> > +++ mg.1 21 May 2013 19:46:38 -0000
> > @@ -268,6 +268,8 @@ suspend-emacs
> > scroll-other-window
> > .It M-SPC
> > just-one-space
> > +.It M-!
> > +shell-command
> > .It M-.
> > find-tag
> > .It M-*
> > @@ -835,6 +837,8 @@ Used by auto-fill-mode.
> > Sets the mark in the current window to the current dot location.
> > .It set-prefix-string
> > Sets the prefix string to be used by the 'prefix-region' command.
> > +.It shell-command
> > +Execute external command from mini-buffer.
> > .It shell-command-on-region
> > Provide the text in region to the shell command as input.
> > .It shrink-window
> > Index: region.c
> > ===================================================================
> > RCS file: /cvs/src/usr.bin/mg/region.c,v
> > retrieving revision 1.32
> > diff -u -p -r1.32 region.c
> > --- region.c 27 Dec 2012 18:49:59 -0000 1.32
> > +++ region.c 21 May 2013 19:46:38 -0000
> > @@ -28,6 +28,7 @@ static int iomux(int, char * const, int,
> > static int preadin(int, struct buffer *);
> > static void pwriteout(int, char **, int *);
> > static int setsize(struct region *, RSIZE);
> > +static int shellcmdoutput(char * const[], char * const, int);
> >
> > /*
> > * Kill the region. Ask "getregion" to figure out the bounds of the
> > region.
> > @@ -406,9 +407,8 @@ int
> > piperegion(int f, int n)
> > {
> > struct region region;
> > - struct buffer *bp;
> > - int len, ret;
> > - char *cmd, cmdbuf[NFILEN], *shellp, *text;
> > + int len;
> > + char *cmd, cmdbuf[NFILEN], *text;
> > char *argv[] = {"sh", "-c", (char *) NULL, (char *) NULL};
> >
> > /* C-u M-| is not supported yet */
> > @@ -436,6 +436,51 @@ piperegion(int f, int n)
> > return (FALSE);
> > }
> >
> > + region_get_data(®ion, text, len);
> > +
> > + return shellcmdoutput(argv, text, len);
> > +}
> > +
> > +/*
> > + * Get command from mini-buffer and execute externally.
> > + */
> > +/*ARGSUSED */
> > +int
> > +shellcommand(int f, int n)
> > +{
> > +
> > + int len;
> > + char *cmd, cmdbuf[NFILEN], *text;
> > + char *argv[] = {"sh", "-c", (char *) NULL, (char *) NULL};
> > +
> > + if (n > 1)
> > + return (ABORT);
> > +
> > + if ((cmd = eread("Shell command: ", cmdbuf, sizeof(cmdbuf),
> > + EFNEW | EFCR)) == NULL || (cmd[0] == '\0'))
> > + return (ABORT);
> > +
> > + argv[2] = cmd;
> > +
> > + len = strlen(cmd);
> > +
> > + if ((text = malloc(len + 1)) == NULL) {
> > + ewprintf("Cannot allocate memory.");
> > + return (FALSE);
> > + }
> > +
> > + return shellcmdoutput(argv, NULL, 0);
> > +}
> > +
> > +
> > +int
> > +shellcmdoutput(char* const argv[], char* const text, int len)
> > +{
> > +
> > + struct buffer *bp;
> > + char *shellp;
> > + int ret;
> > +
> > bp = bfind("*Shell Command Output*", TRUE);
> > bp->b_flag |= BFREADONLY;
> > if (bclear(bp) != TRUE) {
> > @@ -443,7 +488,6 @@ piperegion(int f, int n)
> > return (FALSE);
> > }
> >
> > - region_get_data(®ion, text, len);
> > shellp = getenv("SHELL");
> >
> > ret = pipeio(shellp, argv, text, len, bp);
> >
>
> --
> Regards,
>
> Jasper Lievisse Adriaanse,
> Engineering team M:tier
