aboutsummaryrefslogtreecommitdiffstats
path: root/scripts
diff options
context:
space:
mode:
authorVadim Bendebury (вб) <vbendeb@google.com>2009-12-20 00:29:49 -0800
committerMichal Marek <mmarek@suse.cz>2010-02-02 14:33:55 +0100
commitda60fbbcb637b37b1d77a41886ae4e275422ca96 (patch)
treeb75965f0cc17567b1b7723094e1e9358e23c3b12 /scripts
parent5358db0b0e16470337c6ec08177deb3f68ed7673 (diff)
downloadmrst-s0i3-test-da60fbbcb637b37b1d77a41886ae4e275422ca96.tar.gz
mrst-s0i3-test-da60fbbcb637b37b1d77a41886ae4e275422ca96.tar.xz
mrst-s0i3-test-da60fbbcb637b37b1d77a41886ae4e275422ca96.zip
menuconfig: wrap long help lines
Help text for certain config options is very extensive (the text includes the names of all other options the option in question depends on). Long lines are not wrapped, making it impossible to see the list without scrolling horizontally. This patch adds some logic which wraps help screen lines at word boundaries to prevent truncating. Tested by running ARCH=powerpc make menuconfig O=/tmp/build which shows that the long lines are now wrapped, and ARCH=powerpc make xconfig O=/tmp/build to demonstrate that it still compiles and operates as expected. Signed-off-by: Vadim Bendebury <vbendeb@google.com> Signed-off-by: Michal Marek <mmarek@suse.cz>
Diffstat (limited to 'scripts')
-rw-r--r--scripts/kconfig/expr.c27
-rw-r--r--scripts/kconfig/lkc.h5
-rw-r--r--scripts/kconfig/mconf.c1
-rw-r--r--scripts/kconfig/util.c2
4 files changed, 33 insertions, 2 deletions
diff --git a/scripts/kconfig/expr.c b/scripts/kconfig/expr.c
index edd3f39a080..d83f2322893 100644
--- a/scripts/kconfig/expr.c
+++ b/scripts/kconfig/expr.c
@@ -1097,9 +1097,32 @@ void expr_fprint(struct expr *e, FILE *out)
static void expr_print_gstr_helper(void *data, struct symbol *sym, const char *str)
{
- str_append((struct gstr*)data, str);
+ struct gstr *gs = (struct gstr*)data;
+ const char *sym_str = NULL;
+
+ if (sym)
+ sym_str = sym_get_string_value(sym);
+
+ if (gs->max_width) {
+ unsigned extra_length = strlen(str);
+ const char *last_cr = strrchr(gs->s, '\n');
+ unsigned last_line_length;
+
+ if (sym_str)
+ extra_length += 4 + strlen(sym_str);
+
+ if (!last_cr)
+ last_cr = gs->s;
+
+ last_line_length = strlen(gs->s) - (last_cr - gs->s);
+
+ if ((last_line_length + extra_length) > gs->max_width)
+ str_append(gs, "\\\n");
+ }
+
+ str_append(gs, str);
if (sym)
- str_printf((struct gstr*)data, " [=%s]", sym_get_string_value(sym));
+ str_printf(gs, " [=%s]", sym_str);
}
void expr_gstr_print(struct expr *e, struct gstr *gs)
diff --git a/scripts/kconfig/lkc.h b/scripts/kconfig/lkc.h
index f379b0bf8c9..e59dd0c5787 100644
--- a/scripts/kconfig/lkc.h
+++ b/scripts/kconfig/lkc.h
@@ -106,6 +106,11 @@ int file_write_dep(const char *name);
struct gstr {
size_t len;
char *s;
+ /*
+ * when max_width is not zero long lines in string s (if any) get
+ * wrapped not to exceed the max_width value
+ */
+ int max_width;
};
struct gstr str_new(void);
struct gstr str_assign(const char *s);
diff --git a/scripts/kconfig/mconf.c b/scripts/kconfig/mconf.c
index 8413cf38ed2..ac1e9dacde9 100644
--- a/scripts/kconfig/mconf.c
+++ b/scripts/kconfig/mconf.c
@@ -638,6 +638,7 @@ static void show_help(struct menu *menu)
{
struct gstr help = str_new();
+ help.max_width = getmaxx(stdscr) - 10;
menu_get_ext_help(menu, &help);
show_helptext(_(menu_get_prompt(menu)), str_get(&help));
diff --git a/scripts/kconfig/util.c b/scripts/kconfig/util.c
index b6b2a46af14..81c100d953e 100644
--- a/scripts/kconfig/util.c
+++ b/scripts/kconfig/util.c
@@ -78,6 +78,7 @@ struct gstr str_new(void)
struct gstr gs;
gs.s = malloc(sizeof(char) * 64);
gs.len = 64;
+ gs.max_width = 0;
strcpy(gs.s, "\0");
return gs;
}
@@ -88,6 +89,7 @@ struct gstr str_assign(const char *s)
struct gstr gs;
gs.s = strdup(s);
gs.len = strlen(s) + 1;
+ gs.max_width = 0;
return gs;
}