From f4395dba32882d927cc359e4fbb91bb577f70031 Mon Sep 17 00:00:00 2001
From: Julius Huelsmann <juliusHuelsmann@gmail.com>
Date: Sun, 7 Jun 2020 18:15:30 +0200
Subject: [PATCH] repatch
---
Makefile | 2 +-
config.def.h | 14 +++
normalMode.c | 279 +++++++++++++++++++++++++++++++++++++++++
normalMode.h | 7 ++
st.c | 348 +++++++++++++++++++++++++++------------------------
st.h | 1 +
utils.h | 23 ++++
win.h | 1 +
x.c | 16 ++-
9 files changed, 521 insertions(+), 170 deletions(-)
create mode 100644 normalMode.c
create mode 100644 normalMode.h
create mode 100644 utils.h
diff --git a/Makefile b/Makefile
index 470ac86..6688a58 100644
--- a/Makefile
+++ b/Makefile
@@ -21,7 +21,7 @@ config.h:
.c.o:
$(CC) $(STCFLAGS) -c $<
-st.o: config.h st.h win.h
+st.o: config.h st.h win.h normalMode.h normalMode.c utils.h
x.o: arg.h config.h st.h win.h
$(OBJ): config.h config.mk
diff --git a/config.def.h b/config.def.h
index 6f05dce..b6c2457 100644
--- a/config.def.h
+++ b/config.def.h
@@ -131,6 +131,19 @@ unsigned int defaultfg = 7;
unsigned int defaultbg = 0;
static unsigned int defaultcs = 256;
static unsigned int defaultrcs = 257;
+unsigned int const currentBg = 6, buffSize = 2048;
+/// [Vim Browse] Colors for search results currently on screen.
+unsigned int const highlightBg = 160, highlightFg = 15;
+char const wDelS[] = "!\"#$%&'()*+,-./:;<=>?@[\\]^`{|}~", wDelL[] = " \t";
+char *nmKeys [] = { ///< Shortcusts executed in normal mode
+ "R/Building\nN", "r/Building\n", "X/juli@machine\nN", "x/juli@machine\n",
+ "Q?[Leaving vim, starting execution]\n","F/: error:\nN", "f/: error:\n", "DQf"
+};
+unsigned int const amountNmKeys = sizeof(nmKeys) / sizeof(*nmKeys);
+/// Style of the {command, search} string shown in the right corner (y,v,V,/)
+Glyph styleSearch = {' ', ATTR_ITALIC | ATTR_BOLD_FAINT, 7, 16};
+Glyph style[] = {{' ',ATTR_ITALIC|ATTR_FAINT,15,16}, {' ',ATTR_ITALIC,232,11},
+ {' ', ATTR_ITALIC, 232, 4}, {' ', ATTR_ITALIC, 232, 12}};
/*
* Default shape of cursor
@@ -199,6 +212,7 @@ static Shortcut shortcuts[] = {
{ TERMMOD, XK_Y, selpaste, {.i = 0} },
{ ShiftMask, XK_Insert, selpaste, {.i = 0} },
{ TERMMOD, XK_Num_Lock, numlock, {.i = 0} },
+ { MODKEY, XK_c, normalMode, {.i = 0} },
};
/*
diff --git a/normalMode.c b/normalMode.c
new file mode 100644
index 0000000..24a3fb2
--- /dev/null
+++ b/normalMode.c
@@ -0,0 +1,279 @@
+#include <X11/keysym.h>
+#include <X11/XKBlib.h>
+
+#include "normalMode.h"
+#include "utils.h"
+
+extern Glyph const styleSearch, style[];
+extern char const wDelS[], wDelL[], *nmKeys[];
+extern unsigned int bg[], fg, currentBg, highlightBg, highlightFg, amountNmKeys;
+
+typedef struct { int p[3]; } Pos;
+struct NormalModeState {
+ struct OperationState {
+ enum Op {noop=0, visual='v', visualLine='V', yank = 'y'} op;
+ enum Infix {infix_none=0, infix_i='i', infix_a='a'} infix;
+ } cmd;
+ struct MotionState {
+ uint32_t c; int active; Pos searchPos;
+ enum Search {none=0, fw='/', bw='?'} search;
+ } m;
+} defaultNormalMode, state;
+DynamicArray searchStr=UTF8_ARRAY, cCmd=UTF8_ARRAY, lCmd=UTF8_ARRAY;
+Glyph styleCmd;
+char posBuffer[10], brack[6][2] = { {"()"}, {"<>"}, {"{}"}, {"[]"}, {"\"\""}, {"''"}};
+int exited=1, overlay=1;
+static inline uint32_t cchar() { return term.line[term.c.y][term.c.x].u; }
+static inline int pos(int p, int h) {return IS_SET(MODE_ALTSCREEN)?p:rangeY(p+h*histOff-insertOff);}
+static inline int contains(char c, char const * values, uint32_t memSize) {
+ for (uint32_t i = 0; i < memSize; ++i) if (c == values[i]) return 1;
+ return 0;
+}
+static inline void decodeTo(char const *cs, int len, DynamicArray *darr) {
+ char *var = expand(darr);
+ if (!var) empty(darr); else utf8decode(cs, (Rune*)(var), len);
+}
+static inline void applyPos(Pos p) {
+ term.c.x = p.p[0], term.c.y = p.p[1];
+ if (!IS_SET(MODE_ALTSCREEN) && histOp) term.line = &buf[histOff = p.p[2]];
+}
+/// Find string in history buffer, and provide string-match-lookup for highlighting matches
+static int highlighted(int x, int y) {
+ int const s=term.row*term.col, i=y*term.col+x, sz=size(&searchStr);
+ return sz && i<s && mark[i]!=sz && i+mark[i]<s && !mark[i+mark[i]];
+}
+static void markSearchMatches(int all) {
+ int sz = size(&searchStr), ox = 0, oy = 0, oi=0;
+ for (int y=0; sz && all && y<term.row; ++y)
+ for (int x=0; x<term.col; ++x) term.dirty[y] |= highlighted(x, y);
+ for (int y = 0, wi=0, owi=0, i=0; sz && y < term.row; ++y)
+ for (int x=0; x<term.col; ++x, wi%=sz, ++i, owi=wi)
+ if (all || term.dirty[y]) {
+ mark[i]=sz-(wi=(getU32(&searchStr,wi,1)==term.line[y][x].u?wi+1:0));
+ if (wi==1) ox=x, oy=y, oi=i; else if (!wi && owi) x=ox, y=oy, i=oi;
+ }
+ for (int y=0; sz &&all &&y<term.row; ++y)
+ for (int x=0; x<term.col; ++x) term.dirty[y] |= highlighted(x, y);
+}
+static int findString(int8_t s, int all) {
+ Pos p = (Pos) {.p={term.c.x, term.c.y, IS_SET(MODE_ALTSCREEN) ? 0 : histOff}};
+ historyMove(s, 0, 0);
+ uint32_t strSz=size(&searchStr), maxIter=rows()*term.col+strSz, widx=0;
+ for (uint32_t i=0, wi = 0; widx<strSz && ++i<=maxIter; historyMove(s, 0, 0), wi=widx) {
+ widx = (getU32(&searchStr, widx, s>0)==cchar())?widx+1:0;
+ if (wi && !widx) historyMove(-s*wi, 0, 0);
+ }
+ if (widx == strSz && widx) historyMove(-s * strSz, 0, 0);
+ else applyPos(p);
+ markSearchMatches(all);
+ return widx == strSz;
+}
+/// Execute series of normal-mode commands from char array / decoded from dynamic array
+static ExitState pressKeys(char const* s, size_t e) {
+ ExitState x=succ;
+ for (size_t i=0; i<e && (x=(!s[i] ? x : kpressHist(&s[i], 1, 0, NULL))); ++i);
+ return x;
+}
+static ExitState executeCommand(uint32_t *c, size_t z) {
+ ExitState x=succ;
+ char dc [32];
+ for (size_t i=0; i<z && (x=kpressHist(dc,utf8encode(c[i],dc),0,NULL));++i);
+ return x;
+}
+/// Get character for overlay, if the overlay (st) has something to show, else normal char.
+static void getChar(DynamicArray *st, Glyph *glyphChange, int y, int xEnd, int width, int x) {
+ if (x < xEnd - min(width=min(width,xEnd), size(st))) *glyphChange = term.line[y][x];
+ else if (x<xEnd) glyphChange->u = *((Rune*)(st->content + (size(st)+x-xEnd)*st->elSize));
+}
+/// Expand "infix" expression: for instance (w =>) l b | | v e | | y
+static ExitState expandExpression(char c) { // ({ =>) l ? { \n | l | v / } \n | h | y
+ int a=state.cmd.infix==infix_a, yank=state.cmd.op=='y', lc=tolower(c), found=1;
+ state.cmd.infix = infix_none;
+ if(!yank && state.cmd.op!=visual && state.cmd.op!=visualLine) return failed;
+ char mot[11] = {'l', 0, 'b', 0, 0, 'v', 0, 'e', 0, 0, yank ? 'y' : 0};
+ if (lc == 'w') mot[2] = 'b' - lc + c, mot[7] = (a ? 'w' : 'e') - lc + c, mot[9]=a?'h':0;
+ else {
+ mot[1]='?', mot[3]=mot[8]='\n', mot[6]='/', mot[4]=a?0:'l', mot[9]=a?0:'h';
+ for (int i=found=0; !found && i < 6; ++i)
+ if ((found=contains(c,brack[i],2))) mot[2]=brack[i][0], mot[7]=brack[i][1];
+ }
+ if (!found) return failed;
+ assign(&lCmd, &cCmd);
+ empty(&cCmd);
+ state.cmd = defaultNormalMode.cmd;
+ return pressKeys(mot, 11);
+}
+
+int executeMotion(char const cs, int len, KeySym const *const ks) {
+ state.m.c = max(state.m.c, 1);
+ if (ks && *ks == XK_d) historyMove(0, 0, term.row / 2);
+ else if (ks && *ks == XK_u) historyMove(0, 0, -term.row / 2);
+ else if (ks && *ks == XK_f) historyMove(0, 0, term.row-1+(term.c.y=0));
+ else if (ks && *ks == XK_b) historyMove(0, 0, -(term.c.y=term.row-1));
+ else if (ks && *ks == XK_h) overlay = !overlay;
+ else if (!len) return failed;
+ else if (cs == 'K') historyMove(0, 0, -state.m.c);
+ else if (cs == 'J') historyMove(0, 0, state.m.c);
+ else if (cs == 'k') historyMove(0, -state.m.c, 0);
+ else if (cs == 'j') historyMove(0, state.m.c, 0);
+ else if (cs == 'h') historyMove(-state.m.c, 0, 0);
+ else if (cs == 'l') historyMove( state.m.c, 0, 0);
+ else if (cs == 'H') term.c.y = 0;
+ else if (cs == 'M') term.c.y = term.bot / 2;
+ else if (cs == 'L') term.c.y = term.bot;
+ else if (cs == 's' || cs == 'S') altToggle = cs == 's' ? !altToggle : 1;
+ else if (cs == 'G' || cs == 'g') {
+ if (cs == 'G') term.c = c[0] = c[IS_SET(MODE_ALTSCREEN)+1];
+ if (!IS_SET(MODE_ALTSCREEN)) term.line = &buf[histOff=insertOff];
+ } else if (cs == '0') term.c.x = 0;
+ else if (cs == '$') term.c.x = term.col-1;
+ else if (cs == 't') sel.type = sel.type==SEL_REGULAR ? SEL_RECTANGULAR : SEL_REGULAR;
+ else if (cs == 'n' || cs == 'N') {
+ int const d = ((cs=='N')!=(state.m.search==bw))?-1:1;
+ for (int i = state.m.c; i && findString(d, 0); --i);
+ } else if (contains(cs, "wWeEbB", 6)) {
+ int const low=cs<=90, off=tolower(cs)!='w', sgn=(tolower(cs)=='b')?-1:1,
+ l=strlen(wDelL), s=strlen(wDelS), mit=rows()*term.col;
+ for (int it=0, on=0; state.m.c > 0; ++it) {
+ if (off || it) if (!historyMove(sgn, 0, 0)) it = mit; //< offset move
+ int n = 1<<(contains(cchar(),wDelS,s) ?(2-low) :!contains(cchar(),wDelL,l)),
+ found = (on|=n)^n && ((off ?on^n :n)!=1); //< state change &letter state
+ if (found && off) historyMove(-sgn, 0, 0); //< offset move if required
+ if (found || it>mit) it=-1, on=0, --state.m.c; //< terminate iteration
+ }
+ } else return failed;
+ state.m.c = 0;
+ return state.cmd.op == yank ? exitMotion : succ;
+}
+
+ExitState kpressHist(char const *cs, int len, int ctrl, KeySym const *ksym) {
+ historyOpToggle(1, 1);
+ int const prevYOff=IS_SET(MODE_ALTSCREEN)?0:histOff, search=state.m.search&&state.m.active,
+ prevAltToggle=altToggle, prevOverlay=overlay;
+ int const noOp=!state.cmd.op&&!state.cmd.infix, num=len==1&&BETWEEN(cs[0],48,57),
+ esc=ksym&&*ksym==XK_Escape, ret=(ksym&&*ksym==XK_Return)||(len==1&&cs[0]=='\n'),
+ quantifier=num&&(cs[0]!='0'||state.m.c), ins=!search &&noOp &&len &&cs[0]=='i';
+ exited = 0;
+ ExitState result = succ;
+ if (esc || ret || ins) { result = exitMotion, len = 0;
+ } else if (ksym && *ksym == XK_BackSpace) {
+ if ((search || state.m.c) && size(&cCmd)) pop(&cCmd);
+ if (search) {
+ if (size(&searchStr)) pop(&searchStr);
+ else result = exitMotion;
+ if (!size(&searchStr)) tfulldirt();
+ applyPos(state.m.searchPos);
+ findString(state.m.search==fw ? 1 : -1, 1);
+ } else if (state.m.c) state.m.c /= 10;
+ len = 0;
+ } else if (search) {
+ if (len >= 1) decodeTo(cs, len, &searchStr);
+ applyPos(state.m.searchPos);
+ findString(state.m.search==fw ? 1 : -1, 1);
+ } else if (len == 0) { result = failed;
+ } else if (quantifier) { state.m.c = min(SHRT_MAX, state.m.c*10+cs[0]-48);
+ } else if (state.cmd.infix && state.cmd.op && (result = expandExpression(cs[0]), len=0)) {
+ } else if (cs[0] == '.') {
+ if (size(&cCmd)) assign(&lCmd, &cCmd);
+ empty(&cCmd);
+ executeCommand((uint32_t*) lCmd.content, size(&lCmd));
+ empty(&cCmd);
+ len = 0;
+ } else if (cs[0] == 'r') { tfulldirt();
+ } else if (cs[0] == 'c') {
+ empty(&lCmd);
+ empty(&cCmd);
+ empty(&searchStr);
+ tfulldirt();
+ len = 0;
+ } else if (cs[0] == fw || cs[0] == bw) {
+ empty(&searchStr);
+ state.m.search = cs[0];
+ state.m.searchPos = (Pos){.p={term.c.x, term.c.y, prevYOff}};
+ state.m.active = 1;
+ } else if (cs[0]==infix_i || cs[0]==infix_a) { state.cmd.infix=cs[0];
+ } else if (cs[0] == 'y') {
+ if (state.cmd.op) {
+ result = (state.cmd.op == yank) ? exitOp : exitMotion;
+ if (state.cmd.op == yank) selstart(0, term.c.y, 0);
+ } else selstart(term.c.x, term.c.y, 0);
+ state.cmd.op = yank;
+ } else if (cs[0] == visual || cs[0] == visualLine) {
+ if (state.cmd.op != (unsigned char) cs[0]) {
+ state.cmd = defaultNormalMode.cmd;
+ state.cmd.op = cs[0];
+ selstart(cs[0] == visualLine ?0 :term.c.x, term.c.y, 0);
+ } else result = exitOp;
+ } else if (!(result =executeMotion(len?cs[0]:0, len, ctrl?ksym:NULL))) {
+ result=failed;
+ for (size_t i = 0; !ctrl && i < amountNmKeys; ++i)
+ if (cs[0]==nmKeys[i][0] &&
+ failed!=(result=pressKeys(&nmKeys[i][1], strlen(nmKeys[i])-1))) goto end;
+ } // Operation/Motion finished if valid: update cmd string, extend selection, update search
+ if (result != failed) {
+ if (len == 1 && !ctrl) decodeTo(cs, len, &cCmd);
+ if ((state.cmd.op == visualLine) || ((state.cmd.op == yank) && (result == exitOp))) {
+ int const off = pos(term.c.y, 1) < pos(sel.ob.y, 0);
+ sel.ob.x = off ? term.col - 1 : 0;
+ selextend(off ? 0 : term.col-1, term.c.y, sel.type, 0);
+ } else if (sel.oe.x != -1) selextend(term.c.x, term.c.y, sel.type, 0);
+ } // Set repaint for motion or status bar
+ if (!IS_SET(MODE_ALTSCREEN) && prevYOff != histOff) tfulldirt();
+ // Terminate Motion / operation if thus indicated
+ if (result == exitMotion) {
+ if (!state.m.active) result = (exited=noOp) ? finished : exitOp;
+ state.m.active = state.m.c = 0;
+ }
+ if (result == exitOp || result == finished) {
+ if (state.cmd.op == yank) {
+ xsetsel(getsel());
+ xclipcopy();
+ }
+ state = defaultNormalMode;
+ selclear();
+ if (!esc) assign(&lCmd, &cCmd);
+ empty(&cCmd);
+ } // Update the content displayed in the history overlay
+ styleCmd = style[state.cmd.op==yank ? 1 : (state.cmd.op==visual ? 2 :
+ (state.cmd.op==visualLine ? 3 :0))];
+ int const posLin = !IS_SET(MODE_ALTSCREEN) ? rangeY(insertOff-histOff):0, h=rows()-term.row;
+ if (!posLin || posLin==h || !h) strcpy(posBuffer, posLin ? " [BOT] " : " [TOP] ");
+ else sprintf(posBuffer, " % 3d%c ", min(100, max(0, .5 + posLin * 100. / h)),'%');
+ if ((overlay || overlay!=prevOverlay) && term.col>9 && term.row>4) {
+ if (!term.dirty[term.row-1]) xdrawline(term.line[term.row-1], term.col*2/3, term.row-1, term.col-1);
+ if (!term.dirty[term.row-2]) xdrawline(term.line[term.row-2], term.col*2/3, term.row-2, term.col-1);
+ }
+ if (result==finished) altToggle = 0;
+ if (altToggle != prevAltToggle) tswapscreen();
+end:
+ historyOpToggle(-1, 1);
+ return result;
+}
+
+void historyOverlay(int x, int y, Glyph* g) {
+ if (!histMode) return;
+ TCursor const *cHist = histOp ? &term.c : &c[0];
+ if(overlay && term.col > 9 && term.row > 4 && (x > (2*term.col/3)) && (y >= (term.row-2))) {
+ *g = (y == term.row - 2) ? styleSearch : styleCmd;
+ if (y == term.row-2) getChar(&searchStr, g, term.row-2, term.col-2, term.col/3, x);
+ else if (x > term.col - 7) g->u = posBuffer[x - term.col + 7];
+ else getChar(size(&cCmd) ?&cCmd :&lCmd, g, term.row-1, term.col-7, term.col/3-6, x);
+ } else if (highlighted(x, y)) g->bg = highlightBg, g->fg = highlightFg;
+ else if ((x==cHist->x) ^ (y==cHist->y)) g->bg = currentBg;
+ else if (x==cHist->x) g->mode^=ATTR_REVERSE;
+}
+void historyPreDraw() {
+ static Pos op = {.p={0, 0, 0}};
+ historyOpToggle(1, 0);
+ // Draw the cursor cross if changed
+ if (term.c.y >= term.row || op.p[1] >= term.row) tfulldirt();
+ else if (exited || (op.p[1] != term.c.y)) term.dirty[term.c.y] = term.dirty[op.p[1]] = 1;
+ for (int i=0; (exited || term.c.x != op.p[0]) && i<term.row; ++i) if (!term.dirty[i]) {
+ xdrawline(term.line[i], term.c.x, i, term.c.x + 1);
+ xdrawline(term.line[i], op.p[0], i, op.p[0] + 1);
+ }
+ // Update search results either only for lines with new content or all results if exiting
+ markSearchMatches(exited);
+ op = (Pos){.p = {term.c.x, term.c.y, 0}};
+ historyOpToggle(-1, 0);
+}
diff --git a/normalMode.h b/normalMode.h
new file mode 100644
index 0000000..f520c61
--- /dev/null
+++ b/normalMode.h
@@ -0,0 +1,7 @@
+void normalMode();
+void historyPreDraw();
+void historyOverlay(int x, int y, Glyph* g);
+void historyModeToggle(int start);
+/// Handles keys in normal mode.
+typedef enum {failed=0, succ=1, exitMotion=2, exitOp=3, finished=4} ExitState;
+ExitState kpressHist(char const *txt, int len, int ctrl, KeySym const *kSym);
diff --git a/st.c b/st.c
index ef8abd5..aba59f0 100644
--- a/st.c
+++ b/st.c
@@ -1,4 +1,5 @@
/* See LICENSE for license details. */
+#include <assert.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
@@ -42,6 +43,8 @@
#define ISCONTROLC1(c) (BETWEEN(c, 0x80, 0x9f))
#define ISCONTROL(c) (ISCONTROLC0(c) || ISCONTROLC1(c))
#define ISDELIM(u) (u && wcschr(worddelimiters, u))
+static inline int max(int a, int b) { return a > b ? a : b; }
+static inline int min(int a, int b) { return a < b ? a : b; }
enum term_mode {
MODE_WRAP = 1 << 0,
@@ -97,6 +100,7 @@ typedef struct {
int mode;
int type;
int snap;
+ int swap;
/*
* Selection variables:
* nb – normalized coordinates of the beginning of the selection
@@ -205,9 +209,8 @@ static void tstrsequence(uchar);
static void drawregion(int, int, int, int);
-static void selnormalize(void);
static void selscroll(int, int);
-static void selsnap(int *, int *, int);
+static void selnormalize(void);
static size_t utf8decode(const char *, Rune *, size_t);
static Rune utf8decodebyte(char, size_t *);
@@ -233,6 +236,14 @@ static uchar utfmask[UTF_SIZ + 1] = {0xC0, 0x80, 0xE0, 0xF0, 0xF8};
static Rune utfmin[UTF_SIZ + 1] = { 0, 0, 0x80, 0x800, 0x10000};
static Rune utfmax[UTF_SIZ + 1] = {0x10FFFF, 0x7F, 0x7FF, 0xFFFF, 0x10FFFF};
+int buffCols;
+extern int const buffSize;
+int histOp, histMode, histOff, histOffX, insertOff, altToggle, *mark;
+Line *buf = NULL;
+static TCursor c[3];
+static inline int rows() { return IS_SET(MODE_ALTSCREEN) ? term.row : buffSize;}
+static inline int rangeY(int i) { while (i < 0) i += rows(); return i % rows();}
+
ssize_t
xwrite(int fd, const char *s, size_t len)
{
@@ -425,6 +436,114 @@ tlinelen(int y)
return i;
}
+void historyOpToggle(int start, int paint) {
+ if (!histOp == !(histOp + start)) if ((histOp += start) || 1) return;
+ if (histMode && paint && (!IS_SET(MODE_ALTSCREEN) || altToggle)) draw();
+ tcursor(CURSOR_SAVE);
+ histOp += start;
+ if (histMode && altToggle) {
+ tswapscreen();
+ memset(term.dirty,0,sizeof(*term.dirty)*term.row);
+ }
+ tcursor(CURSOR_LOAD);
+ *(!IS_SET(MODE_ALTSCREEN)?&term.line:&term.alt)=&buf[histOp?histOff:insertOff];
+}
+
+void historyModeToggle(int start) {
+ if (!(histMode = (histOp = !!start))) {
+ selnormalize();
+ tfulldirt();
+ } else {
+ tcursor(CURSOR_SAVE);
+ histOp = 0;
+ histOff = insertOff;
+ }
+}
+
+int historyBufferScroll(int n) {
+ if (IS_SET(MODE_ALTSCREEN) || !n) return histOp;
+ int p=abs(n=(n<0) ? max(n,-term.row) : min(n,term.row)), r=term.row-p,
+ s=sizeof(*term.dirty), *ptr=histOp?&histOff:&insertOff;
+ if (!histMode || histOp) tfulldirt(); else {
+ memmove(&term.dirty[-min(n,0)], &term.dirty[max(n,0)], s*r);
+ memset(&term.dirty[n>0 ? r : 0], 0, s * p);
+ }
+ int const prevOffBuf = sel.alt ? 0 : insertOff + term.row;
+ term.line = &buf[*ptr = (buffSize+*ptr+n) % buffSize];
+ // Cut part of selection removed from buffer, and update sel.ne/b.
+ if (sel.ob.x != -1 && !histOp && n) {
+ int const offBuf = sel.alt ? 0 : insertOff + term.row,
+ pb = rangeY(sel.ob.y - prevOffBuf),
+ pe = rangeY(sel.oe.y - prevOffBuf);
+ int const b = rangeY(sel.ob.y - offBuf), nln = n < 0,
+ e = rangeY(sel.oe.y - offBuf), last = offBuf - nln;
+ if (pb != b && ((pb < b) != nln)) sel.ob.y = last;
+ if (pe != e && ((pe < e) != nln)) sel.oe.y = last;
+ if (sel.oe.y == last && sel.ob.y == last) selclear();
+ }
+ selnormalize();
+ // Clear the new region exposed by the shift.
+ if (!histOp) tclearregion(0, n>0?r+1:0, buffCols-1, n>0?term.row:p-1);
+ return 1;
+}
+
+int historyMove(int x, int y, int ly) {
+ historyOpToggle(1, 1);
+ y += ((term.c.x += x) < 0 ?term.c.x-term.col :term.c.x) / term.col;//< x
+ if ((term.c.x %= term.col) < 0) term.c.x += term.col;
+ if ((term.c.y += y) >= term.row) ly += term.c.y - term.row + 1; //< y
+ else if (term.c.y < 0) ly += term.c.y;
+ term.c.y = MIN(MAX(term.c.y, 0), term.row - 1);
+ int off=insertOff-histOff, bot=rangeY(off), top=-rangeY(-term.row-off),
+ pTop = (-ly>-top), pBot = (ly > bot), fin=histMode&&(pTop||pBot);
+ if (fin && (x||y)) term.c.x = pBot ? term.col-1 : 0;
+ historyBufferScroll(fin ? (pBot ? bot : top) : ly);
+ historyOpToggle(-1, 1);
+ return fin;
+}
+
+#include "normalMode.c"
+
+void selnormalize(void) {
+ historyOpToggle(1, 1);
+
+ int const oldb = sel.nb.y, olde = sel.ne.y;
+ if (sel.ob.x == -1) {
+ sel.ne.y = sel.nb.y = -1;
+ } else {
+ int const offsetBuffer = sel.alt ? 0 : insertOff + term.row;
+ int const off = sel.alt ? 0 : (histMode ? histOff : insertOff);
+ int const nby = rangeY(sel.ob.y - off),
+ ney = rangeY(sel.oe.y - off);
+ sel.swap = rangeY(sel.ob.y - offsetBuffer)
+ > rangeY(sel.oe.y - offsetBuffer);
+ sel.nb.y = sel.swap ? ney : nby;
+ sel.ne.y = !sel.swap ? ney : nby;
+ int const cnb = sel.nb.y < term.row, cne = sel.ne.y < term.row;
+ if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
+ if (cnb) sel.nb.x = (!sel.swap) ? sel.ob.x : sel.oe.x;
+ if (cne) sel.ne.x = (!sel.swap) ? sel.oe.x : sel.ob.x;
+ } else {
+ if (cnb) sel.nb.x = MIN(sel.ob.x, sel.oe.x);
+ if (cne) sel.ne.x = MAX(sel.ob.x, sel.oe.x);
+ }
+ }
+ int const nBet=sel.nb.y<=sel.ne.y, oBet=oldb<=olde;
+ for (int i = 0; i < term.row; ++i) {
+ int const n = nBet ? BETWEEN(i, sel.nb.y, sel.ne.y)
+ : OUT(i, sel.nb.y, sel.ne.y);
+ term.dirty[i] |= (sel.type == SEL_RECTANGULAR && n) ||
+ (n != (oBet ? BETWEEN(i,oldb,olde) : OUT(i,oldb,olde)));
+
+ }
+ if (BETWEEN(oldb, 0, term.row - 1)) term.dirty[oldb] = 1;
+ if (BETWEEN(olde, 0, term.row - 1)) term.dirty[olde] = 1;
+ if (BETWEEN(sel.nb.y, 0, term.row - 1)) term.dirty[sel.nb.y] = 1;
+ if (BETWEEN(sel.ne.y, 0, term.row - 1)) term.dirty[sel.ne.y] = 1;
+
+ historyOpToggle(-1, 1);
+}
+
void
selstart(int col, int row, int snap)
{
@@ -434,19 +553,14 @@ selstart(int col, int row, int snap)
sel.alt = IS_SET(MODE_ALTSCREEN);
sel.snap = snap;
sel.oe.x = sel.ob.x = col;
- sel.oe.y = sel.ob.y = row;
+ sel.oe.y = sel.ob.y = row + !sel.alt * (histMode ? histOff : insertOff);
+ if (sel.snap != 0) sel.mode = SEL_READY;
selnormalize();
-
- if (sel.snap != 0)
- sel.mode = SEL_READY;
- tsetdirt(sel.nb.y, sel.ne.y);
}
void
selextend(int col, int row, int type, int done)
{
- int oldey, oldex, oldsby, oldsey, oldtype;
-
if (sel.mode == SEL_IDLE)
return;
if (done && sel.mode == SEL_EMPTY) {
@@ -454,51 +568,13 @@ selextend(int col, int row, int type, int done)
return;
}
- oldey = sel.oe.y;
- oldex = sel.oe.x;
- oldsby = sel.nb.y;
- oldsey = sel.ne.y;
- oldtype = sel.type;
-
sel.oe.x = col;
- sel.oe.y = row;
+ sel.oe.y = row + (sel.alt ? 0 : (histMode ? histOff : insertOff));
selnormalize();
sel.type = type;
-
- if (oldey != sel.oe.y || oldex != sel.oe.x || oldtype != sel.type || sel.mode == SEL_EMPTY)
- tsetdirt(MIN(sel.nb.y, oldsby), MAX(sel.ne.y, oldsey));
-
sel.mode = done ? SEL_IDLE : SEL_READY;
}
-void
-selnormalize(void)
-{
- int i;
-
- if (sel.type == SEL_REGULAR && sel.ob.y != sel.oe.y) {
- sel.nb.x = sel.ob.y < sel.oe.y ? sel.ob.x : sel.oe.x;
- sel.ne.x = sel.ob.y < sel.oe.y ? sel.oe.x : sel.ob.x;
- } else {
- sel.nb.x = MIN(sel.ob.x, sel.oe.x);
- sel.ne.x = MAX(sel.ob.x, sel.oe.x);
- }
- sel.nb.y = MIN(sel.ob.y, sel.oe.y);
- sel.ne.y = MAX(sel.ob.y, sel.oe.y);
-
- selsnap(&sel.nb.x, &sel.nb.y, -1);
- selsnap(&sel.ne.x, &sel.ne.y, +1);
-
- /* expand selection over line breaks */
- if (sel.type == SEL_RECTANGULAR)
- return;
- i = tlinelen(sel.nb.y);
- if (i < sel.nb.x)
- sel.nb.x = i;
- if (tlinelen(sel.ne.y) <= sel.ne.x)
- sel.ne.x = term.col - 1;
-}
-
int
selected(int x, int y)
{
@@ -510,119 +586,47 @@ selected(int x, int y)
return BETWEEN(y, sel.nb.y, sel.ne.y)
&& BETWEEN(x, sel.nb.x, sel.ne.x);
- return BETWEEN(y, sel.nb.y, sel.ne.y)
- && (y != sel.nb.y || x >= sel.nb.x)
- && (y != sel.ne.y || x <= sel.ne.x);
-}
-
-void
-selsnap(int *x, int *y, int direction)
-{
- int newx, newy, xt, yt;
- int delim, prevdelim;
- Glyph *gp, *prevgp;
-
- switch (sel.snap) {
- case SNAP_WORD:
- /*
- * Snap around if the word wraps around at the end or
- * beginning of a line.
- */
- prevgp = &term.line[*y][*x];
- prevdelim = ISDELIM(prevgp->u);
- for (;;) {
- newx = *x + direction;
- newy = *y;
- if (!BETWEEN(newx, 0, term.col - 1)) {
- newy += direction;
- newx = (newx + term.col) % term.col;
- if (!BETWEEN(newy, 0, term.row - 1))
- break;
-
- if (direction > 0)
- yt = *y, xt = *x;
- else
- yt = newy, xt = newx;
- if (!(term.line[yt][xt].mode & ATTR_WRAP))
- break;
- }
-
- if (newx >= tlinelen(newy))
- break;
-
- gp = &term.line[newy][newx];
- delim = ISDELIM(gp->u);
- if (!(gp->mode & ATTR_WDUMMY) && (delim != prevdelim
- || (delim && gp->u != prevgp->u)))
- break;
-
- *x = newx;
- *y = newy;
- prevgp = gp;
- prevdelim = delim;
- }
- break;
- case SNAP_LINE:
- /*
- * Snap around if the the previous line or the current one
- * has set ATTR_WRAP at its end. Then the whole next or
- * previous line will be selected.
- */
- *x = (direction < 0) ? 0 : term.col - 1;
- if (direction < 0) {
- for (; *y > 0; *y += direction) {
- if (!(term.line[*y-1][term.col-1].mode
- & ATTR_WRAP)) {
- break;
- }
- }
- } else if (direction > 0) {
- for (; *y < term.row-1; *y += direction) {
- if (!(term.line[*y][term.col-1].mode
- & ATTR_WRAP)) {
- break;
- }
- }
- }
- break;
- }
+ return ((sel.nb.y > sel.ne.y) ? OUT(y, sel.nb.y, sel.ne.y)
+ : BETWEEN(y, sel.nb.y, sel.ne.y)) &&
+ (y != sel.nb.y || x >= sel.nb.x) &&
+ (y != sel.ne.y || x <= sel.ne.x);
}
char *
getsel(void)
{
char *str, *ptr;
- int y, bufsize, lastx, linelen;
+ int y, yy, bufsize, lastx;
Glyph *gp, *last;
if (sel.ob.x == -1)
return NULL;
- bufsize = (term.col+1) * (sel.ne.y-sel.nb.y+1) * UTF_SIZ;
+ int const start = sel.swap ? sel.oe.y : sel.ob.y, h = rows();
+ int endy = (sel.swap ? sel.ob.y : sel.oe.y);
+ for (; endy < start; endy += h);
+ Line * const cbuf = IS_SET(MODE_ALTSCREEN) ? term.line : buf;
+ bufsize = (term.col+1) * (endy-start+1 ) * UTF_SIZ;
+ assert(bufsize > 0);
ptr = str = xmalloc(bufsize);
/* append every set & selected glyph to the selection */
- for (y = sel.nb.y; y <= sel.ne.y; y++) {
- if ((linelen = tlinelen(y)) == 0) {
- *ptr++ = '\n';
- continue;
- }
+ for (y = start; y <= endy; y++) {
+ yy = y % h;
if (sel.type == SEL_RECTANGULAR) {
- gp = &term.line[y][sel.nb.x];
+ gp = &cbuf[yy][sel.nb.x];
lastx = sel.ne.x;
} else {
- gp = &term.line[y][sel.nb.y == y ? sel.nb.x : 0];
- lastx = (sel.ne.y == y) ? sel.ne.x : term.col-1;
+ gp = &cbuf[yy][start == y ? sel.nb.x : 0];
+ lastx = (endy == y) ? sel.ne.x : term.col-1;
}
- last = &term.line[y][MIN(lastx, linelen-1)];
- while (last >= gp && last->u == ' ')
- --last;
+ last = &cbuf[yy][lastx];
+ if (!(cbuf[yy][term.col - 1].mode & ATTR_WRAP))
+ while (last > gp && last->u == ' ') --last;
for ( ; gp <= last; ++gp) {
- if (gp->mode & ATTR_WDUMMY)
- continue;
-
+ if (gp->mode & ATTR_WDUMMY) continue;
ptr += utf8encode(gp->u, ptr);
}
@@ -635,7 +639,7 @@ getsel(void)
* st.
* FIXME: Fix the computer world.
*/
- if ((y < sel.ne.y || lastx >= linelen) &&
+ if ((y < endy || lastx == term.col - 1) &&
(!(last->mode & ATTR_WRAP) || sel.type == SEL_RECTANGULAR))
*ptr++ = '\n';
}
@@ -650,7 +654,7 @@ selclear(void)
return;
sel.mode = SEL_IDLE;
sel.ob.x = -1;
- tsetdirt(sel.nb.y, sel.ne.y);
+ selnormalize();
}
void
@@ -1002,8 +1006,7 @@ tfulldirt(void)
void
tcursor(int mode)
{
- static TCursor c[2];
- int alt = IS_SET(MODE_ALTSCREEN);
+ int alt = (histOp) ? 0 : (IS_SET(MODE_ALTSCREEN) + 1);
if (mode == CURSOR_SAVE) {
c[alt] = term.c;
@@ -1063,6 +1066,7 @@ tswapscreen(void)
void
tscrolldown(int orig, int n)
{
+ if (historyBufferScroll(-n)) return;
int i;
Line temp;
@@ -1083,6 +1087,7 @@ tscrolldown(int orig, int n)
void
tscrollup(int orig, int n)
{
+ if (historyBufferScroll(n)) return;
int i;
Line temp;
@@ -1234,8 +1239,8 @@ tclearregion(int x1, int y1, int x2, int y2)
if (y1 > y2)
temp = y1, y1 = y2, y2 = temp;
- LIMIT(x1, 0, term.col-1);
- LIMIT(x2, 0, term.col-1);
+ LIMIT(x1, 0, buffCols-1);
+ LIMIT(x2, 0, buffCols-1);
LIMIT(y1, 0, term.row-1);
LIMIT(y2, 0, term.row-1);
@@ -1243,8 +1248,6 @@ tclearregion(int x1, int y1, int x2, int y2)
term.dirty[y] = 1;
for (x = x1; x <= x2; x++) {
gp = &term.line[y][x];
- if (selected(x, y))
- selclear();
gp->fg = term.c.attr.fg;
gp->bg = term.c.attr.bg;
gp->mode = 0;
@@ -2411,8 +2414,6 @@ check_control_code:
*/
return;
}
- if (selected(term.c.x, term.c.y))
- selclear();
gp = &term.line[term.c.y][term.c.x];
if (IS_SET(MODE_WRAP) && (term.c.state & CURSOR_WRAPNEXT)) {
@@ -2482,8 +2483,10 @@ void
tresize(int col, int row)
{
int i;
- int minrow = MIN(row, term.row);
- int mincol = MIN(col, term.col);
+ int const colSet = col, alt = IS_SET(MODE_ALTSCREEN), ini = buf == NULL;
+ col = MAX(col, buffCols);
+ row = MIN(row, buffSize);
+ int const minrow = MIN(row, term.row), mincol = MIN(col, buffCols);
int *bp;
TCursor c;
@@ -2492,6 +2495,7 @@ tresize(int col, int row)
"tresize: error resizing to %dx%d\n", col, row);
return;
}
+ if (alt) tswapscreen();
/*
* slide screen to keep cursor where we expect it -
@@ -2499,48 +2503,54 @@ tresize(int col, int row)
* memmove because we're freeing the earlier lines
*/
for (i = 0; i <= term.c.y - row; i++) {
- free(term.line[i]);
free(term.alt[i]);
}
/* ensure that both src and dst are not NULL */
if (i > 0) {
- memmove(term.line, term.line + i, row * sizeof(Line));
memmove(term.alt, term.alt + i, row * sizeof(Line));
}
for (i += row; i < term.row; i++) {
- free(term.line[i]);
free(term.alt[i]);
}
/* resize to new height */
- term.line = xrealloc(term.line, row * sizeof(Line));
+ buf = xrealloc(buf, (buffSize + row) * sizeof(Line));
term.alt = xrealloc(term.alt, row * sizeof(Line));
term.dirty = xrealloc(term.dirty, row * sizeof(*term.dirty));
+ mark = xrealloc(mark, col * row * sizeof(*mark));
term.tabs = xrealloc(term.tabs, col * sizeof(*term.tabs));
/* resize each row to new width, zero-pad if needed */
for (i = 0; i < minrow; i++) {
- term.line[i] = xrealloc(term.line[i], col * sizeof(Glyph));
term.alt[i] = xrealloc(term.alt[i], col * sizeof(Glyph));
}
/* allocate any new rows */
for (/* i = minrow */; i < row; i++) {
- term.line[i] = xmalloc(col * sizeof(Glyph));
term.alt[i] = xmalloc(col * sizeof(Glyph));
}
- if (col > term.col) {
- bp = term.tabs + term.col;
+ if (col > buffCols) {
+ bp = term.tabs + buffCols;
- memset(bp, 0, sizeof(*term.tabs) * (col - term.col));
+ memset(bp, 0, sizeof(*term.tabs) * (col - buffCols));
while (--bp > term.tabs && !*bp)
/* nothing */ ;
for (bp += tabspaces; bp < term.tabs + col; bp += tabspaces)
*bp = 1;
}
+ Glyph g=(Glyph){.bg=term.c.attr.bg, .fg=term.c.attr.fg, .u=' ', .mode=0};
+ for (i = 0; i < buffSize; ++i) {
+ buf[i] = xrealloc(ini ? NULL : buf[i], col*sizeof(Glyph));
+ for (int j = ini ? 0 : buffCols; j < col; ++j) buf[i][j] = g;
+ }
+ for (i = 0; i < row; ++i) buf[buffSize + i] = buf[i];
+ term.line = &buf[*(histOp?&histOff:&insertOff) +=MAX(term.c.y-row+1,0)];
+ memset(mark, 0, col * row * sizeof(*mark));
/* update terminal size */
- term.col = col;
+ term.col = colSet;
+ buffCols = col;
term.row = row;
+ if (alt) tswapscreen();
/* reset scrolling region */
tsetscroll(0, row-1);
/* make use of the LIMIT in tmoveto */
@@ -2569,15 +2579,17 @@ resettitle(void)
void
drawregion(int x1, int y1, int x2, int y2)
{
+ if (altToggle && histMode && !histOp)
+ memset(term.dirty, 0, sizeof(*term.dirty) * term.row);
+ int const o = !IS_SET(MODE_ALTSCREEN) && histMode && !histOp, h =rows();
int y;
for (y = y1; y < y2; y++) {
- if (!term.dirty[y])
- continue;
-
- term.dirty[y] = 0;
- xdrawline(term.line[y], x1, y, x2);
+ int const oy = o ? (y + insertOff - histOff + h) % h : y;
+ if (!BETWEEN(oy, 0, term.row-1) || !term.dirty[y]) continue;
+ xdrawline(term.line[y], x1, oy, x2);
}
+ memset(&term.dirty[y1], 0, sizeof(*term.dirty) * (y2 - y1));
}
void
@@ -2596,7 +2608,9 @@ draw(void)
if (term.line[term.c.y][cx].mode & ATTR_WDUMMY)
cx--;
+ if (histMode) historyPreDraw();
drawregion(0, 0, term.col, term.row);
+ if (!histMode)
xdrawcursor(cx, term.c.y, term.line[term.c.y][cx],
term.ocx, term.ocy, term.line[term.ocy][term.ocx]);
term.ocx = cx;
diff --git a/st.h b/st.h
index 3d351b6..b79ac2f 100644
--- a/st.h
+++ b/st.h
@@ -8,6 +8,7 @@
#define MAX(a, b) ((a) < (b) ? (b) : (a))
#define LEN(a) (sizeof(a) / sizeof(a)[0])
#define BETWEEN(x, a, b) ((a) <= (x) && (x) <= (b))
+#define OUT(x, a, b) ((a) <= (x) || (x) <= (b))
#define DIVCEIL(n, d) (((n) + ((d) - 1)) / (d))
#define DEFAULT(a, b) (a) = (a) ? (a) : (b)
#define LIMIT(x, a, b) (x) = (x) < (a) ? (a) : (x) > (b) ? (b) : (x)
diff --git a/utils.h b/utils.h
new file mode 100644
index 0000000..ca435e6
--- /dev/null
+++ b/utils.h
@@ -0,0 +1,23 @@
+/// Dynamic memory-chunk, with (1) datatype size, (2/3) initialized / allocated chunk, (4) content
+typedef struct { uint8_t const elSize; uint32_t init, alloc; char* content; } DynamicArray;
+#define UTF8_ARRAY {4, 0, 0, NULL}
+
+static inline int p_alloc(DynamicArray *s, uint32_t amount) {
+ uint32_t const diff=s->init+s->elSize*amount-s->alloc, nas=s->alloc+max(diff,15)*s->elSize;
+ if (s->alloc < s->init + s->elSize * amount) {
+ char* tmp = realloc(s->content, nas);
+ if (!tmp) return 0;
+ s->alloc = nas, s->content = tmp;
+ }
+ return 1;
+}
+static inline char *view(DynamicArray * s, uint32_t i) { return s->content + i*s->elSize; }
+static inline char *end(DynamicArray *s, uint32_t i) { return s->content +s->init-(i+1)*s->elSize; }
+static inline uint32_t getU32(DynamicArray* s, uint32_t i, int b) { return *((uint32_t*) (b ?view(s,i) :end(s,i))); }
+static char *expand(DynamicArray *s) { if (!p_alloc(s, 1)) return NULL; s->init += s->elSize; return end(s, 0); }
+static inline void pop(DynamicArray* s) { s->init -= s->elSize; }
+static inline void empty(DynamicArray* s) { s->init = 0; }
+static inline int size(DynamicArray const * s) { return s->init / s->elSize; }
+static inline void assign(DynamicArray* s, DynamicArray const *o) {
+ if (p_alloc(s, size(o))) memcpy(s->content, o->content, (s->init=o->init));
+}
diff --git a/win.h b/win.h
index a6ef1b9..cea19f3 100644
--- a/win.h
+++ b/win.h
@@ -19,6 +19,7 @@ enum win_mode {
MODE_MOUSEMANY = 1 << 15,
MODE_BRCKTPASTE = 1 << 16,
MODE_NUMLOCK = 1 << 17,
+ MODE_NORMAL = 1 << 18,
MODE_MOUSE = MODE_MOUSEBTN|MODE_MOUSEMOTION|MODE_MOUSEX10\
|MODE_MOUSEMANY,
};
diff --git a/x.c b/x.c
index 210f184..da9e773 100644
--- a/x.c
+++ b/x.c
@@ -19,6 +19,7 @@ char *argv0;
#include "arg.h"
#include "st.h"
#include "win.h"
+#include "normalMode.h"
/* types used in config.h */
typedef struct {
@@ -261,6 +262,7 @@ clipcopy(const Arg *dummy)
free(xsel.clipboard);
xsel.clipboard = NULL;
+ xsetsel(getsel());
if (xsel.primary != NULL) {
xsel.clipboard = xstrdup(xsel.primary);
@@ -772,6 +774,8 @@ xloadcolor(int i, const char *name, Color *ncolor)
return XftColorAllocName(xw.dpy, xw.vis, xw.cmap, name, ncolor);
}
+void normalMode() { historyModeToggle((win.mode ^=MODE_NORMAL) & MODE_NORMAL); }
+
void
xloadcols(void)
{
@@ -1225,8 +1229,10 @@ xmakeglyphfontspecs(XftGlyphFontSpec *specs, const Glyph *glyphs, int len, int x
for (i = 0, xp = winx, yp = winy + font->ascent; i < len; ++i) {
/* Fetch rune and mode for current glyph. */
- rune = glyphs[i].u;
- mode = glyphs[i].mode;
+ Glyph g = glyphs[i];
+ historyOverlay(x+i, y, &g);
+ rune = g.u;
+ mode = g.mode;
/* Skip dummy wide-character spacing. */
if (mode == ATTR_WDUMMY)
@@ -1609,6 +1615,7 @@ xdrawline(Line line, int x1, int y1, int x2)
i = ox = 0;
for (x = x1; x < x2 && i < numspecs; x++) {
new = line[x];
+ historyOverlay(x, y1, &new);
if (new.mode == ATTR_WDUMMY)
continue;
if (selected(x, y1))
@@ -1800,6 +1807,11 @@ kpress(XEvent *ev)
len = XmbLookupString(xw.ime.xic, e, buf, sizeof buf, &ksym, &status);
else
len = XLookupString(e, buf, sizeof buf, &ksym, NULL);
+ if (IS_SET(MODE_NORMAL)) {
+ if (kpressHist(buf, len, match(ControlMask, e->state), &ksym)
+ == finished) normalMode();
+ return;
+ }
/* 1. shortcuts */
for (bp = shortcuts; bp < shortcuts + LEN(shortcuts); bp++) {
if (ksym == bp->keysym && match(bp->mod, e->state)) {
--
2.27.0