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php-cli/src/TableFormatter.php at dynamicLogLevel · splitbrain/php-cli · GitHub
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<?php
namespace
splitbrain
\
phpcli
;
/**
* Class TableFormatter
*
* Output text in multiple columns
*
* @author Andreas Gohr <andi@splitbrain.org>
* @license MIT
*/
class
TableFormatter
{
/** @var string border between columns */
protected
$
border
=
'
'
;
/** @var int the terminal width */
protected
$
max
=
74
;
/** @var Colors for coloring output */
protected
$
colors
;
/**
* TableFormatter constructor.
*
* @param Colors|null $colors
*/
public
function
__construct
(
Colors
$
colors
=
null
)
{
// try to get terminal width
$
width
=
$
this
->
getTerminalWidth
();
if
(
$
width
) {
$
this
->
max
=
$
width
-
1
;
}
if
(
$
colors
) {
$
this
->
colors
=
$
colors
;
}
else
{
$
this
->
colors
=
new
Colors
();
}
}
/**
* The currently set border (defaults to ' ')
*
* @return string
*/
public
function
getBorder
()
{
return
$
this
->
border
;
}
/**
* Set the border. The border is set between each column. Its width is
* added to the column widths.
*
* @param string $border
*/
public
function
setBorder
(
$
border
)
{
$
this
->
border
=
$
border
;
}
/**
* Width of the terminal in characters
*
* initially autodetected
*
* @return int
*/
public
function
getMaxWidth
()
{
return
$
this
->
max
;
}
/**
* Set the width of the terminal to assume (in characters)
*
* @param int $max
*/
public
function
setMaxWidth
(
$
max
)
{
$
this
->
max
=
$
max
;
}
/**
* Tries to figure out the width of the terminal
*
* @return int terminal width, 0 if unknown
*/
protected
function
getTerminalWidth
()
{
// from environment
if
(
isset
(
$
_SERVER
[
'
COLUMNS
'
]))
return
(
int
)
$
_SERVER
[
'
COLUMNS
'
];
// via tput
$
process
=
proc_open
(
'
tput cols
'
,
array
(
1
=>
array
(
'
pipe
'
,
'
w
'
),
2
=>
array
(
'
pipe
'
,
'
w
'
),
),
$
pipes
);
$
width
= (
int
)
stream_get_contents
(
$
pipes
[
1
]);
proc_close
(
$
process
);
return
$
width
;
}
/**
* Takes an array with dynamic column width and calculates the correct width
*
* Column width can be given as fixed char widths, percentages and a single * width can be given
* for taking the remaining available space. When mixing percentages and fixed widths, percentages
* refer to the remaining space after allocating the fixed width
*
* @param array $columns
* @return int[]
* @throws Exception
*/
protected
function
calculateColLengths
(
$
columns
)
{
$
idx
=
0
;
$
border
=
$
this
->
strlen
(
$
this
->
border
);
$
fixed
= (
count
(
$
columns
) -
1
) *
$
border
;
// borders are used already
$
fluid
= -
1
;
// first pass for format check and fixed columns
foreach
(
$
columns
as
$
idx
=>
$
col
) {
// handle fixed columns
if
((
string
)
intval
(
$
col
) === (
string
)
$
col
) {
$
fixed
+=
$
col
;
continue
;
}
// check if other colums are using proper units
if
(
substr
(
$
col
, -
1
) ==
'
%
'
) {
continue
;
}
if
(
$
col
==
'
*
'
) {
// only one fluid
if
(
$
fluid
<
0
) {
$
fluid
=
$
idx
;
continue
;
}
else
{
throw
new
Exception
(
'
Only one fluid column allowed!
'
);
}
}
throw
new
Exception
(
"
unknown column format
$
col
"
);
}
$
alloc
=
$
fixed
;
$
remain
=
$
this
->
max
-
$
alloc
;
// second pass to handle percentages
foreach
(
$
columns
as
$
idx
=>
$
col
) {
if
(
substr
(
$
col
, -
1
) !=
'
%
'
) {
continue
;
}
$
perc
=
floatval
(
$
col
);
$
real
= (
int
)
floor
((
$
perc
*
$
remain
) /
100
);
$
columns
[
$
idx
] =
$
real
;
$
alloc
+=
$
real
;
}
$
remain
=
$
this
->
max
-
$
alloc
;
if
(
$
remain
<
0
) {
throw
new
Exception
(
"
Wanted column widths exceed available space
"
);
}
// assign remaining space
if
(
$
fluid
<
0
) {
$
columns
[
$
idx
] += (
$
remain
);
// add to last column
}
else
{
$
columns
[
$
fluid
] =
$
remain
;
}
return
$
columns
;
}
/**
* Displays text in multiple word wrapped columns
*
* @param int[] $columns list of column widths (in characters, percent or '*')
* @param string[] $texts list of texts for each column
* @param array $colors A list of color names to use for each column. use empty string for default
* @return string
* @throws Exception
*/
public
function
format
(
$
columns
,
$
texts
,
$
colors
=
array
())
{
$
columns
=
$
this
->
calculateColLengths
(
$
columns
);
$
wrapped
=
array
();
$
maxlen
=
0
;
foreach
(
$
columns
as
$
col
=>
$
width
) {
$
wrapped
[
$
col
] =
explode
(
"\n"
,
$
this
->
wordwrap
(
$
texts
[
$
col
],
$
width
,
"\n"
,
true
));
$
len
=
count
(
$
wrapped
[
$
col
]);
if
(
$
len
>
$
maxlen
) {
$
maxlen
=
$
len
;
}
}
$
last
=
count
(
$
columns
) -
1
;
$
out
=
''
;
for
(
$
i
=
0
;
$
i
<
$
maxlen
;
$
i
++) {
foreach
(
$
columns
as
$
col
=>
$
width
) {
if
(
isset
(
$
wrapped
[
$
col
][
$
i
])) {
$
val
=
$
wrapped
[
$
col
][
$
i
];
}
else
{
$
val
=
''
;
}
$
chunk
=
$
this
->
pad
(
$
val
,
$
width
);
if
(
isset
(
$
colors
[
$
col
]) &&
$
colors
[
$
col
]) {
$
chunk
=
$
this
->
colors
->
wrap
(
$
chunk
,
$
colors
[
$
col
]);
}
$
out
.=
$
chunk
;
// border
if
(
$
col
!=
$
last
) {
$
out
.=
$
this
->
border
;
}
}
$
out
.=
"\n"
;
}
return
$
out
;
}
/**
* Pad the given string to the correct length
*
* @param string $string
* @param int $len
* @return string
*/
protected
function
pad
(
$
string
,
$
len
)
{
$
strlen
=
$
this
->
strlen
(
$
string
);
if
(
$
strlen
>
$
len
)
return
$
string
;
$
pad
=
$
len
-
$
strlen
;
return
$
string
.
str_pad
(
''
,
$
pad
,
'
'
);
}
/**
* Measures char length in UTF-8 when possible
*
* @param $string
* @return int
*/
protected
function
strlen
(
$
string
)
{
// don't count color codes
$
string
=
preg_replace
(
"
/
\33\\
[
\\
d+(;
\\
d+)?m/
"
,
''
,
$
string
);
if
(
function_exists
(
'
mb_strlen
'
)) {
return
mb_strlen
(
$
string
,
'
utf-8
'
);
}
return
strlen
(
$
string
);
}
/**
* @param string $string
* @param int $start
* @param int|null $length
* @return string
*/
protected
function
substr
(
$
string
,
$
start
=
0
,
$
length
=
null
)
{
if
(
function_exists
(
'
mb_substr
'
)) {
return
mb_substr
(
$
string
,
$
start
,
$
length
);
}
else
{
// mb_substr() treats $length differently than substr()
if
(
$
length
) {
return
substr
(
$
string
,
$
start
,
$
length
);
}
else
{
return
substr
(
$
string
,
$
start
);
}
}
}
/**
* @param string $str
* @param int $width
* @param string $break
* @param bool $cut
* @return string
* @link http://stackoverflow.com/a/4988494
*/
protected
function
wordwrap
(
$
str
,
$
width
=
75
,
$
break
=
"\n"
,
$
cut
=
false
)
{
$
lines
=
explode
(
$
break
,
$
str
);
foreach
(
$
lines
as
&
$
line
) {
$
line
=
rtrim
(
$
line
);
if
(
$
this
->
strlen
(
$
line
) <=
$
width
) {
continue
;
}
$
words
=
explode
(
'
'
,
$
line
);
$
line
=
''
;
$
actual
=
''
;
foreach
(
$
words
as
$
word
) {
if
(
$
this
->
strlen
(
$
actual
.
$
word
) <=
$
width
) {
$
actual
.=
$
word
.
'
'
;
}
else
{
if
(
$
actual
!=
''
) {
$
line
.=
rtrim
(
$
actual
) .
$
break
;
}
$
actual
=
$
word
;
if
(
$
cut
) {
while
(
$
this
->
strlen
(
$
actual
) >
$
width
) {
$
line
.=
$
this
->
substr
(
$
actual
,
0
,
$
width
) .
$
break
;
$
actual
=
$
this
->
substr
(
$
actual
,
$
width
);
}
}
$
actual
.=
'
'
;
}
}
$
line
.=
trim
(
$
actual
);
}
return
implode
(
$
break
,
$
lines
);
}
}
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