/
print.c
1268 lines (1040 loc) · 30.1 KB
/
print.c
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/* print.c - functions to print table
*
* Copyright (C) 2010-2014 Karel Zak <kzak@redhat.com>
* Copyright (C) 2016 Igor Gnatenko <i.gnatenko.brain@gmail.com>
*
* This file may be redistributed under the terms of the
* GNU Lesser General Public License.
*/
/**
* SECTION: table_print
* @title: Table print
* @short_description: output functions
*
* Table output API.
*/
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <termios.h>
#include <ctype.h>
#include "mbsalign.h"
#include "carefulputc.h"
#include "smartcolsP.h"
/* Fallback for symbols
*
* Note that by default library define all the symbols, but in case user does
* not define all symbols or if we extended the symbols struct then we need
* fallback to be more robust and backwardly compatible.
*/
#define titlepadding_symbol(tb) ((tb)->symbols->title_padding ? (tb)->symbols->title_padding : " ")
#define branch_symbol(tb) ((tb)->symbols->tree_branch ? (tb)->symbols->tree_branch : "|-")
#define vertical_symbol(tb) ((tb)->symbols->tree_vert ? (tb)->symbols->tree_vert : "| ")
#define right_symbol(tb) ((tb)->symbols->tree_right ? (tb)->symbols->tree_right : "`-")
#define grp_vertical_symbol(tb) ((tb)->symbols->group_vert ? (tb)->symbols->group_vert : "|")
#define grp_horizontal_symbol(tb) ((tb)->symbols->group_horz ? (tb)->symbols->group_horz : "-")
#define grp_m_first_symbol(tb) ((tb)->symbols->group_first_member ? (tb)->symbols->group_first_member : ",->")
#define grp_m_last_symbol(tb) ((tb)->symbols->group_last_member ? (tb)->symbols->group_last_member : "\\->")
#define grp_m_middle_symbol(tb) ((tb)->symbols->group_middle_member ? (tb)->symbols->group_middle_member : "|->")
#define grp_c_middle_symbol(tb) ((tb)->symbols->group_middle_child ? (tb)->symbols->group_middle_child : "|-")
#define grp_c_last_symbol(tb) ((tb)->symbols->group_last_child ? (tb)->symbols->group_last_child : "`-")
#define cellpadding_symbol(tb) ((tb)->padding_debug ? "." : \
((tb)->symbols->cell_padding ? (tb)->symbols->cell_padding: " "))
#define want_repeat_header(tb) (!(tb)->header_repeat || (tb)->header_next <= (tb)->termlines_used)
static int is_next_columns_empty(
struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln)
{
struct libscols_iter itr;
if (!tb || !cl)
return 0;
if (is_last_column(cl))
return 1;
if (!ln)
return 0;
scols_reset_iter(&itr, SCOLS_ITER_FORWARD);
scols_table_set_columns_iter(tb, &itr, cl);
/* skip current column */
scols_table_next_column(tb, &itr, &cl);
while (scols_table_next_column(tb, &itr, &cl) == 0) {
struct libscols_cell *ce;
const char *data = NULL;
if (scols_column_is_hidden(cl))
continue;
if (scols_column_is_tree(cl))
return 0;
ce = scols_line_get_cell(ln, cl->seqnum);
if (ce)
data = scols_cell_get_data(ce);
if (data && *data)
return 0;
}
return 1;
}
/* returns pointer to the end of used data */
static int tree_ascii_art_to_buffer(struct libscols_table *tb,
struct libscols_line *ln,
struct ul_buffer *buf)
{
const char *art;
int rc;
assert(ln);
assert(buf);
if (!ln->parent)
return 0;
rc = tree_ascii_art_to_buffer(tb, ln->parent, buf);
if (rc)
return rc;
if (is_last_child(ln))
art = " ";
else
art = vertical_symbol(tb);
return ul_buffer_append_string(buf, art);
}
static int grpset_is_empty( struct libscols_table *tb,
size_t idx,
size_t *rest)
{
size_t i;
for (i = idx; i < tb->grpset_size; i++) {
if (tb->grpset[i] == NULL) {
if (rest)
(*rest)++;
} else
return 0;
}
return 1;
}
static int groups_ascii_art_to_buffer( struct libscols_table *tb,
struct libscols_line *ln,
struct ul_buffer *buf,
int empty)
{
int filled = 0;
size_t i, rest = 0;
const char *filler = cellpadding_symbol(tb);
if (!has_groups(tb))
return 0;
DBG(LINE, ul_debugobj(ln, "printing groups chart"));
if (tb->is_dummy_print)
return 0; /* allocate grpset[] only */
for (i = 0; i < tb->grpset_size; i += SCOLS_GRPSET_CHUNKSIZ) {
struct libscols_group *gr = tb->grpset[i];
if (!gr) {
ul_buffer_append_ntimes(buf, SCOLS_GRPSET_CHUNKSIZ, cellpadding_symbol(tb));
continue;
}
/*
* Empty cells (multi-line entries, etc.), print vertical symbols only
* to show that the group continues.
*/
if (empty) {
switch (gr->state) {
case SCOLS_GSTATE_FIRST_MEMBER:
case SCOLS_GSTATE_MIDDLE_MEMBER:
case SCOLS_GSTATE_CONT_MEMBERS:
ul_buffer_append_string(buf, grp_vertical_symbol(tb));
ul_buffer_append_ntimes(buf, 2, filler);
break;
case SCOLS_GSTATE_LAST_MEMBER:
case SCOLS_GSTATE_MIDDLE_CHILD:
case SCOLS_GSTATE_CONT_CHILDREN:
ul_buffer_append_string(buf, filler);
ul_buffer_append_string(buf, grp_vertical_symbol(tb));
ul_buffer_append_string(buf, filler);
break;
case SCOLS_GSTATE_LAST_CHILD:
ul_buffer_append_ntimes(buf, 3, filler);
break;
}
continue;
}
/*
* Regular cell
*/
switch (gr->state) {
case SCOLS_GSTATE_FIRST_MEMBER:
ul_buffer_append_string(buf, grp_m_first_symbol(tb));
break;
case SCOLS_GSTATE_MIDDLE_MEMBER:
ul_buffer_append_string(buf, grp_m_middle_symbol(tb));
break;
case SCOLS_GSTATE_LAST_MEMBER:
ul_buffer_append_string(buf, grp_m_last_symbol(tb));
break;
case SCOLS_GSTATE_CONT_MEMBERS:
ul_buffer_append_string(buf, grp_vertical_symbol(tb));
ul_buffer_append_ntimes(buf, 2, filler);
break;
case SCOLS_GSTATE_MIDDLE_CHILD:
ul_buffer_append_string(buf, filler);
ul_buffer_append_string(buf, grp_c_middle_symbol(tb));
if (grpset_is_empty(tb, i + SCOLS_GRPSET_CHUNKSIZ, &rest)) {
ul_buffer_append_ntimes(buf, rest+1, grp_horizontal_symbol(tb));
filled = 1;
}
filler = grp_horizontal_symbol(tb);
break;
case SCOLS_GSTATE_LAST_CHILD:
ul_buffer_append_string(buf, cellpadding_symbol(tb));
ul_buffer_append_string(buf, grp_c_last_symbol(tb));
if (grpset_is_empty(tb, i + SCOLS_GRPSET_CHUNKSIZ, &rest)) {
ul_buffer_append_ntimes(buf, rest+1, grp_horizontal_symbol(tb));
filled = 1;
}
filler = grp_horizontal_symbol(tb);
break;
case SCOLS_GSTATE_CONT_CHILDREN:
ul_buffer_append_string(buf, filler);
ul_buffer_append_string(buf, grp_vertical_symbol(tb));
ul_buffer_append_string(buf, filler);
break;
}
if (filled)
break;
}
if (!filled)
ul_buffer_append_string(buf, filler);
return 0;
}
static void fputs_color_reset(struct libscols_table *tb)
{
if (tb->cur_color) {
fputs(UL_COLOR_RESET, tb->out);
tb->cur_color = NULL;
}
}
static void fputs_color(struct libscols_table *tb, const char *color)
{
if (tb->cur_color)
fputs_color_reset(tb);
tb->cur_color = color;
if (color)
fputs(color, tb->out);
}
static const char *get_cell_color(struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln,
struct libscols_cell *ce)
{
const char *color = NULL;
if (!tb || !tb->colors_wanted || tb->format != SCOLS_FMT_HUMAN)
return NULL;
if (ce)
color = ce->color;
if (!color && (!ln || !ln->color) && cl)
color = cl->color;
return color;
}
/* switch from line color to cell/column color */
static void fputs_color_cell_open(struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln,
struct libscols_cell *ce)
{
const char *color = get_cell_color(tb, cl, ln, ce);
if (color)
fputs_color(tb, color);
}
/* switch from cell/column color to line color or reset */
static void fputs_color_cell_close(struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln,
struct libscols_cell *ce)
{
const char *color = get_cell_color(tb, cl, ln, ce);
if (color)
fputs_color(tb, ln ? ln->color : NULL);
}
/* switch to line color */
static void fputs_color_line_open(struct libscols_table *tb,
struct libscols_line *ln)
{
if (!tb || !tb->colors_wanted || tb->format != SCOLS_FMT_HUMAN)
return;
fputs_color(tb, ln ? ln->color : NULL);
}
/* switch off all colors */
static void fputs_color_line_close(struct libscols_table *tb)
{
if (!tb || !tb->colors_wanted || tb->format != SCOLS_FMT_HUMAN)
return;
fputs_color_reset(tb);
}
/* print padding or ASCII-art instead of data of @cl */
static void print_empty_cell(struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln, /* optional */
struct libscols_cell *ce,
size_t bufsz)
{
size_t len_pad = 0; /* in screen cells as opposed to bytes */
DBG(COL, ul_debugobj(cl, " printing empty cell"));
fputs_color_cell_open(tb, cl, ln, ce);
/* generate tree/group ASCII-art rather than padding
*/
if (ln && scols_column_is_tree(cl)) {
struct ul_buffer art = UL_INIT_BUFFER;
char *data;
if (ul_buffer_alloc_data(&art, bufsz) != 0)
goto done;
if (cl->is_groups)
groups_ascii_art_to_buffer(tb, ln, &art, 1);
tree_ascii_art_to_buffer(tb, ln, &art);
if (!list_empty(&ln->ln_branch))
ul_buffer_append_string(&art, vertical_symbol(tb));
if (scols_table_is_noencoding(tb))
data = ul_buffer_get_data(&art, NULL, &len_pad);
else
data = ul_buffer_get_safe_data(&art, NULL, &len_pad, NULL);
if (data && len_pad)
fputs(data, tb->out);
ul_buffer_free_data(&art);
}
done:
/* minout -- don't fill */
if (scols_table_is_minout(tb) && is_next_columns_empty(tb, cl, ln)) {
fputs_color_cell_close(tb, cl, ln, ce);
return;
}
/* default -- fill except last column */
if (!scols_table_is_maxout(tb) && is_last_column(cl)) {
fputs_color_cell_close(tb, cl, ln, ce);
return;
}
/* fill rest of cell with space */
for(; len_pad < cl->width; ++len_pad)
fputs(cellpadding_symbol(tb), tb->out);
fputs_color_cell_close(tb, cl, ln, ce);
if (!is_last_column(cl))
fputs(colsep(tb), tb->out);
}
/* Fill the start of a line with padding (or with tree ascii-art).
*
* This is necessary after a long non-truncated column, as this requires the
* next column to be printed on the next line. For example (see 'DDD'):
*
* aaa bbb ccc ddd eee
* AAA BBB CCCCCCC
* DDD EEE
* ^^^^^^^^^^^^
* new line padding
*/
static void print_newline_padding(struct libscols_table *tb,
struct libscols_column *cl,
struct libscols_line *ln, /* optional */
struct libscols_cell *ce,
size_t bufsz)
{
size_t i;
assert(tb);
assert(cl);
DBG(LINE, ul_debugobj(ln, "printing newline padding"));
fputs(linesep(tb), tb->out); /* line break */
tb->termlines_used++;
fputs_color_line_open(tb, ln);
/* fill cells after line break */
for (i = 0; i <= (size_t) cl->seqnum; i++)
print_empty_cell(tb, scols_table_get_column(tb, i), ln, ce, bufsz);
fputs_color_line_close(tb);
}
static int print_pending_data(struct libscols_table *tb, struct ul_buffer *buf)
{
struct libscols_line *ln;
struct libscols_column *cl;
struct libscols_cell *ce;
char *data;
size_t i, width = 0, len = 0, bytes = 0;
scols_table_get_cursor(tb, &ln, &cl, &ce);
width = cl->width;
if (!width)
return -EINVAL;
DBG(COL, ul_debugobj(cl, "printing pending data"));
if (scols_table_is_noencoding(tb))
data = ul_buffer_get_data(buf, &bytes, &len);
else
data = ul_buffer_get_safe_data(buf, &bytes, &len, scols_column_get_safechars(cl));
if (!data)
return 0;
/* standard multi-line cell */
if (len > width && scols_column_is_wrap(cl)
&& !scols_column_is_customwrap(cl)) {
len = width;
bytes = mbs_truncate(data, &len);
if (bytes != (size_t) -1 && bytes > 0)
scols_column_move_wrap(cl, mbs_safe_decode_size(data));
}
fputs_color_cell_open(tb, cl, ln, ce);
fputs(data, tb->out);
/* minout -- don't fill */
if (scols_table_is_minout(tb) && is_next_columns_empty(tb, cl, ln)) {
fputs_color_cell_close(tb, cl, ln, ce);
return 0;
}
/* default -- fill except last column */
if (!scols_table_is_maxout(tb) && is_last_column(cl)) {
fputs_color_cell_close(tb, cl, ln, ce);
return 0;
}
/* fill rest of cell with space */
for(i = len; i < width; i++)
fputs(cellpadding_symbol(tb), tb->out);
fputs_color_cell_close(tb, cl, ln, ce);
if (!is_last_column(cl))
fputs(colsep(tb), tb->out);
return 0;
}
static void print_json_data(struct libscols_table *tb,
struct libscols_column *cl,
const char *name,
char *data)
{
switch (cl->json_type) {
case SCOLS_JSON_STRING:
/* name: "aaa" */
ul_jsonwrt_value_s(&tb->json, name, data);
break;
case SCOLS_JSON_NUMBER:
case SCOLS_JSON_FLOAT:
/* name: 123 */
ul_jsonwrt_value_raw(&tb->json, name, data);
break;
case SCOLS_JSON_BOOLEAN:
case SCOLS_JSON_BOOLEAN_OPTIONAL:
/* name: true|false|null */
if (cl->json_type == SCOLS_JSON_BOOLEAN_OPTIONAL && (!*data || !strcmp(data, "-"))) {
ul_jsonwrt_value_null(&tb->json, name);
} else {
ul_jsonwrt_value_boolean(&tb->json, name,
!*data ? 0 :
*data == '0' ? 0 :
*data == 'N' || *data == 'n' ? 0 : 1);
}
break;
case SCOLS_JSON_ARRAY_STRING:
case SCOLS_JSON_ARRAY_NUMBER:
{
/* name: [ "aaa", "bbb", "ccc" ] */
int items = 0;
if (!scols_column_is_customwrap(cl)) {
if (data && *data) {
ul_jsonwrt_array_open(&tb->json, name);
ul_jsonwrt_value_s(&tb->json, NULL, data);
items++;
}
} else do {
if (!data || !*data)
continue;
if (!items)
ul_jsonwrt_array_open(&tb->json, name);
if (cl->json_type == SCOLS_JSON_ARRAY_STRING)
ul_jsonwrt_value_s(&tb->json, NULL, data);
else
ul_jsonwrt_value_raw(&tb->json, NULL, data);
items++;
} while (scols_column_next_wrap(cl, NULL, &data) == 0);
if (!items)
ul_jsonwrt_array_empty(&tb->json, name);
else
ul_jsonwrt_array_close(&tb->json);
break;
}
}
}
static int print_data(struct libscols_table *tb, struct ul_buffer *buf)
{
struct libscols_line *ln; /* NULL for header line! */
struct libscols_column *cl;
struct libscols_cell *ce;
size_t len = 0, i, width, bytes;
char *data = NULL;
const char *name = NULL;
int is_last;
assert(tb);
scols_table_get_cursor(tb, &ln, &cl, &ce);
assert(cl);
if (tb->format != SCOLS_FMT_HUMAN) {
name = scols_table_is_shellvar(tb) ?
scols_column_get_name_as_shellvar(cl) :
scols_column_get_name(cl);
data = ul_buffer_get_data(buf, NULL, NULL);
if (!data)
data = "";
}
is_last = is_last_column(cl);
if (ln && is_last && scols_table_is_json(tb) &&
scols_table_is_tree(tb) && has_children(ln))
/* "children": [] is the real last value */
is_last = 0;
switch (tb->format) {
case SCOLS_FMT_RAW:
fputs_nonblank(data, tb->out);
if (!is_last)
fputs(colsep(tb), tb->out);
return 0;
case SCOLS_FMT_EXPORT:
fputs(name ?: "", tb->out);
fputc('=', tb->out);
fputs_quoted(data, tb->out);
if (!is_last)
fputs(colsep(tb), tb->out);
return 0;
case SCOLS_FMT_JSON:
print_json_data(tb, cl, name, data);
return 0;
case SCOLS_FMT_HUMAN:
break; /* continue below */
}
/* Encode. Note that 'len' and 'width' are number of glyphs not bytes.
*/
if (scols_table_is_noencoding(tb))
data = ul_buffer_get_data(buf, &bytes, &len);
else
data = ul_buffer_get_safe_data(buf, &bytes, &len, scols_column_get_safechars(cl));
if (!data)
data = "";
width = cl->width;
if (is_last
&& len < width
&& !scols_table_is_maxout(tb)
&& !scols_column_is_right(cl))
width = len;
/* truncate data */
if (len > width && scols_column_is_trunc(cl)) {
len = width;
bytes = mbs_truncate(data, &len); /* updates 'len' */
}
/* standard multi-line cell */
if (len > width && scols_column_is_wrap(cl)
&& !scols_column_is_customwrap(cl)) {
len = width;
bytes = mbs_truncate(data, &len);
if (bytes != (size_t) -1 && bytes > 0)
scols_column_move_wrap(cl, mbs_safe_decode_size(data));
}
if (bytes == (size_t) -1) {
bytes = len = 0;
data = NULL;
}
fputs_color_cell_open(tb, cl, ln, ce);
if (data && *data) {
if (scols_column_is_right(cl)) {
for (i = len; i < width; i++)
fputs(cellpadding_symbol(tb), tb->out);
len = width;
}
fputs(data, tb->out);
}
/* minout -- don't fill */
if (scols_table_is_minout(tb) && is_next_columns_empty(tb, cl, ln)) {
fputs_color_cell_close(tb, cl, ln, ce);
return 0;
}
/* default -- fill except last column */
if (!scols_table_is_maxout(tb) && is_last) {
fputs_color_cell_close(tb, cl, ln, ce);
return 0;
}
/* fill rest of cell with space */
for(i = len; i < width; i++)
fputs(cellpadding_symbol(tb), tb->out);
fputs_color_cell_close(tb, cl, ln, ce);
if (len > width && !scols_column_is_trunc(cl)) {
DBG(COL, ul_debugobj(cl, "*** data len=%zu > column width=%zu", len, width));
print_newline_padding(tb, cl, ln, ce, ul_buffer_get_bufsiz(buf)); /* next column starts on next line */
} else if (!is_last)
fputs(colsep(tb), tb->out); /* columns separator */
return 0;
}
/*
* Copy current cell data to buffer. The @cal means "calculation" phase.
*/
int __cursor_to_buffer(struct libscols_table *tb,
struct ul_buffer *buf,
int cal)
{
const char *data = NULL;
size_t datasiz = 0;
struct libscols_cell *ce;
struct libscols_line *ln;
struct libscols_column *cl;
int rc = 0;
assert(tb);
scols_table_get_cursor(tb, &ln, &cl, &ce);
assert(ln);
assert(cl);
assert(buf);
assert(cl->seqnum <= tb->ncols);
ul_buffer_reset_data(buf);
if (!scols_column_is_tree(cl))
goto notree;
/*
* Group stuff
*/
if (!scols_table_is_json(tb) && cl->is_groups)
rc = groups_ascii_art_to_buffer(tb, ln, buf, 0);
/*
* Tree stuff
*/
if (!rc && ln->parent && !scols_table_is_json(tb)) {
rc = tree_ascii_art_to_buffer(tb, ln->parent, buf);
if (!rc && is_last_child(ln))
rc = ul_buffer_append_string(buf, right_symbol(tb));
else if (!rc)
rc = ul_buffer_append_string(buf, branch_symbol(tb));
}
if (!rc && (ln->parent || cl->is_groups) && !scols_table_is_json(tb))
ul_buffer_save_pointer(buf, SCOLS_BUFPTR_TREEEND);
notree:
if (!rc && ce) {
int do_wrap = scols_column_is_wrap(cl);
/* Disable multi-line cells for "raw" and "export" formats.
* JSON uses data wrapping to generate arrays */
if (do_wrap && (tb->format == SCOLS_FMT_RAW ||
tb->format == SCOLS_FMT_EXPORT))
do_wrap = 0;
/* Wrapping enabled; append the next chunk if cell data */
if (do_wrap) {
char *x = NULL;
rc = cal ? scols_column_greatest_wrap(cl, ce, &x) :
scols_column_next_wrap(cl, ce, &x);
/* rc: error: <0; nodata: 1; success: 0 */
if (rc < 0)
goto done;
data = x;
rc = 0;
if (data && *data)
datasiz = strlen(data);
if (data && datasiz)
rc = ul_buffer_append_data(buf, data, datasiz);
/* Wrapping disabled, but data maintained by custom wrapping
* callback. Try to use data as a string, if not possible,
* append all chunks separated by \n (backward compatibility).
* */
} else if (scols_column_is_customwrap(cl)) {
size_t len;
int i = 0;
char *x = NULL;
data = scols_cell_get_data(ce);
datasiz = scols_cell_get_datasiz(ce);
len = data ? strnlen(data, datasiz) : 0;
if (len && len + 1 == datasiz)
rc = ul_buffer_append_data(buf, data, datasiz);
else while (scols_column_next_wrap(cl, ce, &x) == 0) {
/* non-string data in cell, use a nextchunk callback */
if (!x)
continue;
datasiz = strlen(x);
if (i)
rc = ul_buffer_append_data(buf, "\n", 1);
if (!rc)
rc = ul_buffer_append_data(buf, x, datasiz);
i++;
}
/* Wrapping disabled; let's use data as a classic string. */
} else {
data = scols_cell_get_data(ce);
datasiz = scols_cell_get_datasiz(ce);
if (data && *data && !datasiz)
datasiz = strlen(data); /* cell content may be updated */
if (data && datasiz)
rc = ul_buffer_append_data(buf, data, datasiz);
}
}
done:
/* reset wrapping after greatest chunk calculation */
if (cal && scols_column_is_wrap(cl))
scols_column_reset_wrap(cl);
DBG(COL, ul_debugobj(cl, "__cursor_to_buffer rc=%d", rc));
return rc;
}
/*
* Prints data. Data can be printed in more formats (raw, NAME=xxx pairs), and
* control and non-printable characters can be encoded in the \x?? encoding.
*/
static int print_line(struct libscols_table *tb,
struct libscols_line *ln,
struct ul_buffer *buf)
{
int rc = 0, pending = 0;
struct libscols_column *cl;
struct libscols_iter itr;
assert(ln);
DBG(LINE, ul_debugobj(ln, " printing line"));
fputs_color_line_open(tb, ln);
/* regular line */
scols_reset_iter(&itr, SCOLS_ITER_FORWARD);
while (rc == 0 && scols_table_next_column(tb, &itr, &cl) == 0) {
if (scols_column_is_hidden(cl))
continue;
scols_table_set_cursor(tb, ln, cl, scols_line_get_cell(ln, cl->seqnum));
rc = __cursor_to_buffer(tb, buf, 0);
if (!rc)
rc = print_data(tb, buf);
if (!rc) {
if (scols_column_has_pending_wrap(cl))
pending = 1;
else
scols_column_reset_wrap(cl);
}
scols_table_reset_cursor(tb);
}
fputs_color_line_close(tb);
/* extra lines of the multi-line cells */
while (rc == 0 && pending) {
DBG(LINE, ul_debugobj(ln, "printing pending data"));
pending = 0;
fputs(linesep(tb), tb->out);
fputs_color_line_open(tb, ln);
tb->termlines_used++;
scols_reset_iter(&itr, SCOLS_ITER_FORWARD);
while (rc == 0 && scols_table_next_column(tb, &itr, &cl) == 0) {
if (scols_column_is_hidden(cl))
continue;
scols_table_set_cursor(tb, ln, cl, scols_line_get_cell(ln, cl->seqnum));
if (scols_column_has_pending_wrap(cl)) {
rc = __cursor_to_buffer(tb, buf, 0);
if (!rc)
rc = print_pending_data(tb, buf);
if (!rc) {
if (scols_column_has_pending_wrap(cl))
pending = 1;
else
scols_column_reset_wrap(cl);
}
} else
print_empty_cell(tb, cl, ln, NULL, ul_buffer_get_bufsiz(buf));
scols_table_reset_cursor(tb);
}
fputs_color_line_close(tb);
}
return 0;
}
int __scols_print_title(struct libscols_table *tb)
{
int rc;
mbs_align_t align;
size_t width, len = 0, bufsz, titlesz;
char *title = NULL, *buf = NULL;
assert(tb);
if (!tb->title.data)
return 0;
DBG(TAB, ul_debugobj(tb, "printing title"));
/* encode data */
if (tb->no_encode) {
len = bufsz = strlen(tb->title.data) + 1;
buf = strdup(tb->title.data);
if (!buf) {
rc = -ENOMEM;
goto done;
}
} else {
bufsz = mbs_safe_encode_size(strlen(tb->title.data)) + 1;
if (bufsz == 1) {
DBG(TAB, ul_debugobj(tb, "title is empty string -- ignore"));
return 0;
}
buf = malloc(bufsz);
if (!buf) {
rc = -ENOMEM;
goto done;
}
if (!mbs_safe_encode_to_buffer(tb->title.data, &len, buf, NULL) ||
!len || len == (size_t) -1) {
rc = -EINVAL;
goto done;
}
}
/* truncate and align */
width = tb->is_term ? tb->termwidth : 80;
titlesz = width + bufsz;
title = malloc(titlesz);
if (!title) {
rc = -EINVAL;
goto done;
}
switch (scols_cell_get_alignment(&tb->title)) {
case SCOLS_CELL_FL_RIGHT:
align = MBS_ALIGN_RIGHT;
break;
case SCOLS_CELL_FL_CENTER:
align = MBS_ALIGN_CENTER;
break;
case SCOLS_CELL_FL_LEFT:
default:
align = MBS_ALIGN_LEFT;
/*
* Don't print extra blank chars after the title if on left
* (that's same as we use for the last column in the table).
*/
if (len < width
&& !scols_table_is_maxout(tb)
&& isblank(*titlepadding_symbol(tb)))
width = len;
break;
}
/* copy from buf to title and align to width with title_padding */
rc = mbsalign_with_padding(buf, title, titlesz,
&width, align,
0, (int) *titlepadding_symbol(tb));
if (rc == -1) {
rc = -EINVAL;
goto done;
}
if (tb->colors_wanted)
fputs_color(tb, tb->title.color);
fputs(title, tb->out);
if (tb->colors_wanted)
fputs_color_reset(tb);
fputc('\n', tb->out);
rc = 0;
done:
free(buf);
free(title);
DBG(TAB, ul_debugobj(tb, "printing title done [rc=%d]", rc));
return rc;
}
int __scols_print_header(struct libscols_table *tb, struct ul_buffer *buf)
{
int rc = 0;
struct libscols_column *cl;
struct libscols_iter itr;
assert(tb);
if ((tb->header_printed == 1 && tb->header_repeat == 0) ||
scols_table_is_noheadings(tb) ||
scols_table_is_export(tb) ||
scols_table_is_json(tb) ||
list_empty(&tb->tb_lines))
return 0;
DBG(TAB, ul_debugobj(tb, "printing header"));
/* set the width according to the size of the data */
scols_reset_iter(&itr, SCOLS_ITER_FORWARD);
while (rc == 0 && scols_table_next_column(tb, &itr, &cl) == 0) {
if (scols_column_is_hidden(cl))
continue;
ul_buffer_reset_data(buf);
scols_table_set_cursor(tb, NULL, cl, &cl->header);
if (cl->is_groups
&& scols_table_is_tree(tb) && scols_column_is_tree(cl)) {
size_t i;
for (i = 0; i < tb->grpset_size + 1; i++) {
rc = ul_buffer_append_data(buf, " ", 1);
if (rc)
break;
}
}
if (!rc)