Public Access
twislaandClaude Opus 5.5
7b8d9391a4
GeminiService fetches on a short-lived task and hands the App a GeminiPage: header, the body as lines in 4 KB chunks (TextBuffer: no large block, no doubling copies), the final URL after up to 5 redirects. Certificates are pinned on first use per host and port; a change comes back as its own outcome with both fingerprints. No fetch starts below 55 KB free (Q86). With a card, the body streams to /gemini/cache/page.gmi in 1 KB pieces while the connection is open, then loads into RAM once its memory is back (Q87); StorageService::runAndWait (moved from the Debug Console) keeps every card access on the storage task. Without a card: RAM, with the steady and transient floors. Measured with IRC connected: Cosmos (31.6 KB) went from 4.6 KB to the whole page on the card and 20 KB on screen; lowest free heap 19.5 KB in transfer, 43 KB once loaded. `gemini get` and `gemini trust` on the console. 14 Gemini tests. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT
101 lines
3.3 KiB
C++
101 lines
3.3 KiB
C++
#include "gemtext.h"
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#include <cstdint>
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namespace roro::gemini {
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namespace {
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std::string trim(const std::string& s) {
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size_t a = s.find_first_not_of(" \t"), b = s.find_last_not_of(" \t");
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return a == std::string::npos ? "" : s.substr(a, b - a + 1);
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}
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} // namespace
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GemLine parseGemLine(const std::string& line, bool& pre) {
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GemLine g;
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if (line.compare(0, 3, "```") == 0) {
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g.type = LineType::PreToggle;
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g.text = trim(line.substr(3));
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pre = !pre;
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} else if (pre) {
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g.type = LineType::Preformatted;
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g.text = line;
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} else if (line.compare(0, 2, "=>") == 0) {
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g.type = LineType::Link;
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std::string rest = trim(line.substr(2));
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size_t gap = rest.find_first_of(" \t");
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g.url = rest.substr(0, gap);
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g.text = gap == std::string::npos ? "" : trim(rest.substr(gap));
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if (g.text.empty()) g.text = g.url;
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} else if (line.compare(0, 3, "###") == 0) {
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g.type = LineType::Heading3;
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g.text = trim(line.substr(3));
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} else if (line.compare(0, 2, "##") == 0) {
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g.type = LineType::Heading2;
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g.text = trim(line.substr(2));
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} else if (line.compare(0, 1, "#") == 0) {
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g.type = LineType::Heading1;
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g.text = trim(line.substr(1));
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} else if (line.compare(0, 2, "* ") == 0) {
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g.type = LineType::ListItem;
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g.text = trim(line.substr(2));
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} else if (line.compare(0, 1, ">") == 0) {
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g.type = LineType::Quote;
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g.text = trim(line.substr(1));
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} else {
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g.text = line;
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}
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return g;
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}
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std::vector<GemLine> parseGemtext(const std::string& document) {
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std::vector<GemLine> lines;
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bool pre = false;
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size_t start = 0;
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while (start < document.size()) {
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size_t end = document.find('\n', start);
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if (end == std::string::npos) end = document.size();
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std::string line = document.substr(start, end - start);
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if (!line.empty() && line.back() == '\r') line.pop_back();
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start = end + 1;
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lines.push_back(parseGemLine(line, pre));
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}
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return lines;
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}
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std::string displayText(const std::string& s) {
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std::string out;
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size_t column = 0;
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for (size_t i = 0; i < s.size();) {
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unsigned char c = static_cast<unsigned char>(s[i]);
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if (c == '\t') {
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do out += ' ';
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while (++column % 4);
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i++;
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continue;
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}
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if (c < 0x80) {
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out += static_cast<char>(c);
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i++;
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} else {
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int len = (c & 0xE0) == 0xC0 ? 2 : (c & 0xF0) == 0xE0 ? 3 : (c & 0xF8) == 0xF0 ? 4 : 0;
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bool valid = len > 0 && i + len <= s.size();
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for (int k = 1; valid && k < len; k++) valid = (static_cast<unsigned char>(s[i + k]) & 0xC0) == 0x80;
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if (!valid) {
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out += '?';
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i++;
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} else {
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uint32_t cp = len == 2 ? (c & 0x1F) : len == 3 ? (c & 0x0F) : (c & 0x07);
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for (int k = 1; k < len; k++) cp = (cp << 6) | (static_cast<unsigned char>(s[i + k]) & 0x3F);
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if (cp <= 0xFF) out.append(s, i, len); // Latin-1: the fonts have it
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else out += '?';
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i += len;
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}
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}
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column++;
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}
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return out;
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}
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} // namespace roro::gemini
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