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TerminalFont (Linux): searching for font config in st binary

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This commit is contained in:
Carter Li
2024-05-08 09:54:22 +08:00
parent 299bc7468f
commit 8f457f047c
1 changed files with 45 additions and 11 deletions
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src/detection/terminalfont/terminalfont_linux.c
+45 -11
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@@ -3,6 +3,7 @@
#include "common/properties.h"
#include "common/parsing.h"
#include "common/io/io.h"
#include "common/processing.h"
#include "detection/terminalshell/terminalshell.h"
#include "detection/displayserver/displayserver.h"
#include "util/mallocHelper.h"
@@ -265,9 +266,9 @@ static void detectXterm(FFTerminalFontResult* terminalFont)
ffFontInitValues(&terminalFont->font, fontName.chars, fontSize.chars);
}
static void detectSt(FFTerminalFontResult* terminalFont, uint32_t pid)
static void detectSt(FFTerminalFontResult* terminalFont, const FFTerminalResult* terminal)
{
FF_STRBUF_AUTO_DESTROY size = ffStrbufCreateF("/proc/%u/cmdline", pid);
FF_STRBUF_AUTO_DESTROY size = ffStrbufCreateF("/proc/%u/cmdline", terminal->pid);
FF_STRBUF_AUTO_DESTROY font = ffStrbufCreate();
if (!ffAppendFileBuffer(size.chars, &font))
{
@@ -276,20 +277,53 @@ static void detectSt(FFTerminalFontResult* terminalFont, uint32_t pid)
}
const char* p = memmem(font.chars, font.length, "\0-f", sizeof("\0-f")); // find parameter of `-f`
if (!p)
if (p)
{
ffStrbufAppendF(&terminalFont->error, "st was not executed with `-f` parameter");
return;
// st was executed with `-f` parameter
ffStrbufSubstrAfter(&font, (uint32_t) (p + (sizeof("\0-f") - 1) - font.chars));
ffStrbufRecalculateLength(&font);
}
else
{
ffStrbufClear(&font);
if (ffProcessAppendStdOut(&font, (char* const[]) {
"strings",
terminal->exePath.chars,
NULL,
}) != NULL || font.length == 0)
{
ffStrbufAppendS(&terminalFont->error, "Failed to run `strings st`");
return;
}
// Search font config string in st binary
uint32_t middleIndex = ffStrbufFirstIndexS(&font, "size=");
if (middleIndex == font.length)
{
ffStrbufAppendS(&terminalFont->error, "No font config found in st binary");
return;
}
uint32_t startIndex = ffStrbufPreviousIndexC(&font, middleIndex, '\n');
if (startIndex == font.length) startIndex = 0;
uint32_t endIndex = ffStrbufNextIndexC(&font, middleIndex, '\n');
ffStrbufSubstrBefore(&font, endIndex);
ffStrbufSubstrAfter(&font, startIndex);
}
ffStrbufSubstrAfter(&font, (uint32_t) (p + (sizeof("\0-f") - 1) - font.chars));
ffStrbufRecalculateLength(&font);
// JetBrainsMono Nerd Font Mono:pixelsize=12:antialias=true:autohint=true
// `monospace:size=15` || `monospace` || `:size=15`
uint32_t index = ffStrbufFirstIndexS(&font, ":size=");
uint32_t index = ffStrbufFirstIndexC(&font, ':');
if (index != font.length)
{
ffStrbufSetS(&size, font.chars + index + strlen(":size="));
uint32_t sIndex = ffStrbufNextIndexS(&font, index + 1, "size=");
if (sIndex != font.length)
{
sIndex += strlen("size=");
uint32_t sIndexEnd = ffStrbufNextIndexC(&font, sIndex, ':');
ffStrbufSetNS(&size, sIndexEnd - sIndex, font.chars + sIndex);
}
ffStrbufSubstrBefore(&font, index);
}
else
@@ -365,7 +399,7 @@ void ffDetectTerminalFontPlatform(const FFTerminalResult* terminal, FFTerminalFo
else if(ffStrbufIgnCaseEqualS(&terminal->processName, "xterm"))
detectXterm(terminalFont);
else if(ffStrbufIgnCaseEqualS(&terminal->processName, "st"))
detectSt(terminalFont, terminal->pid);
detectSt(terminalFont, terminal);
else if(ffStrbufIgnCaseEqualS(&terminal->processName, "warp"))
detectWarp(terminalFont);
else if(ffStrbufIgnCaseEqualS(&terminal->processName, "weston-terminal"))