/* $OpenBSD: io.c,v 1.4 2001/01/08 07:14:42 pjanzen Exp $ */ /* * Copyright (c) 1985 Sun Microsystems, Inc. * Copyright (c) 1980, 1993 The Regents of the University of California. * Copyright (c) 1976 Board of Trustees of the University of Illinois. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. */ #ifndef lint /*static char sccsid[] = "@(#)io.c 8.1 (Berkeley) 6/6/93";*/ static char rcsid[] = "$OpenBSD: io.c,v 1.4 2001/01/08 07:14:42 pjanzen Exp $"; #endif /* not lint */ #include #include #include #include #include #include "indent_globs.h" int comment_open; static int paren_target; void dump_line() { /* dump_line is the routine that actually * effects the printing of the new source. It * prints the label section, followed by the * code section with the appropriate nesting * level, followed by any comments */ int cur_col, target_col; static int not_first_line; if (ps.procname[0]) { if (troff) { if (comment_open) { comment_open = 0; fprintf(output, ".*/\n"); } fprintf(output, ".Pr \"%s\"\n", ps.procname); } ps.ind_level = 0; ps.procname[0] = 0; } if (s_code == e_code && s_lab == e_lab && s_com == e_com) { if (suppress_blanklines > 0) suppress_blanklines--; else { ps.bl_line = true; n_real_blanklines++; } } else if (!inhibit_formatting) { suppress_blanklines = 0; ps.bl_line = false; if (prefix_blankline_requested && not_first_line) { if (swallow_optional_blanklines) { if (n_real_blanklines == 1) n_real_blanklines = 0; } else { if (n_real_blanklines == 0) n_real_blanklines = 1; } } while (--n_real_blanklines >= 0) putc('\n', output); n_real_blanklines = 0; if (ps.ind_level == 0) ps.ind_stmt = 0; /* this is a class A kludge. dont do * additional statement indentation if we are * at bracket level 0 */ if (e_lab != s_lab || e_code != s_code) ++code_lines; /* keep count of lines with code */ if (e_lab != s_lab) { /* print lab, if any */ if (comment_open) { comment_open = 0; fprintf(output, ".*/\n"); } while (e_lab > s_lab && (e_lab[-1] == ' ' || e_lab[-1] == '\t')) e_lab--; cur_col = pad_output(1, compute_label_target()); if (s_lab[0] == '#' && (strncmp(s_lab, "#else", 5) == 0 || strncmp(s_lab, "#endif", 6) == 0)) { char *s = s_lab; if (e_lab[-1] == '\n') e_lab--; do putc(*s++, output); while (s < e_lab && 'a' <= *s && *s<='z'); while ((*s == ' ' || *s == '\t') && s < e_lab) s++; if (s < e_lab) fprintf(output, s[0]=='/' && s[1]=='*' ? "\t%.*s" : "\t/* %.*s */", (int)(e_lab - s), s); } else fprintf(output, "%.*s", (int)(e_lab - s_lab), s_lab); cur_col = count_spaces(cur_col, s_lab); } else cur_col = 1; /* there is no label section */ ps.pcase = false; if (s_code != e_code) { /* print code section, if any */ char *p; if (comment_open) { comment_open = 0; fprintf(output, ".*/\n"); } target_col = compute_code_target(); { int i; for (i = 0; i < ps.p_l_follow; i++) if (ps.paren_indents[i] >= 0) ps.paren_indents[i] = -(ps.paren_indents[i] + target_col); } cur_col = pad_output(cur_col, target_col); for (p = s_code; p < e_code; p++) if (*p == (char) 0200) fprintf(output, "%d", target_col * 7); else putc(*p, output); cur_col = count_spaces(cur_col, s_code); } if (s_com != e_com) { if (troff) { int all_here = 0; char *p; if (e_com[-1] == '/' && e_com[-2] == '*') e_com -= 2, all_here++; while (e_com > s_com && e_com[-1] == ' ') e_com--; *e_com = 0; p = s_com; while (*p == ' ') p++; if (p[0] == '/' && p[1] == '*') p += 2, all_here++; else if (p[0] == '*') p += p[1] == '/' ? 2 : 1; while (*p == ' ') p++; if (*p == 0) goto inhibit_newline; if (comment_open < 2 && ps.box_com) { comment_open = 0; fprintf(output, ".*/\n"); } if (comment_open == 0) { if ('a' <= *p && *p <= 'z') *p = *p + 'A' - 'a'; if (e_com - p < 50 && all_here == 2) { char *follow = p; fprintf(output, "\n.nr C! \\w\1"); while (follow < e_com) { switch (*follow) { case '\n': putc(' ', output); case 1: break; case '\\': putc('\\', output); default: putc(*follow, output); } follow++; } putc(1, output); } fprintf(output, "\n./* %dp %d %dp\n", ps.com_col * 7, (s_code != e_code || s_lab != e_lab) - ps.box_com, target_col * 7); } comment_open = 1 + ps.box_com; while (*p) { if (*p == BACKSLASH) putc(BACKSLASH, output); putc(*p++, output); } } else { /* print comment, if any */ int target = ps.com_col; char *com_st = s_com; target += ps.comment_delta; while (*com_st == '\t') com_st++, target += 8; /* ? */ while (target <= 0) if (*com_st == ' ') target++, com_st++; else if (*com_st == '\t') target = ((target - 1) & ~7) + 9, com_st++; else target = 1; if (cur_col > target) { /* if comment cant fit on this line, * put it on next line */ putc('\n', output); cur_col = 1; ++ps.out_lines; } while (e_com > com_st && isspace(e_com[-1])) e_com--; cur_col = pad_output(cur_col, target); if (!ps.box_com) { if (star_comment_cont && (com_st[1] != '*' || e_com <= com_st + 1)) { if (com_st[1] == ' ' && com_st[0] == ' ' && e_com > com_st + 1) com_st[1] = '*'; else fwrite(" * ", com_st[0] == '\t' ? 2 : com_st[0] == '*' ? 1 : 3, 1, output); } } fwrite(com_st, e_com - com_st, 1, output); ps.comment_delta = ps.n_comment_delta; cur_col = count_spaces(cur_col, com_st); ++ps.com_lines; /* count lines with comments */ } } if (ps.use_ff) putc('\014', output); else putc('\n', output); inhibit_newline: ++ps.out_lines; if (ps.just_saw_decl == 1 && blanklines_after_declarations) { prefix_blankline_requested = 1; ps.just_saw_decl = 0; } else prefix_blankline_requested = postfix_blankline_requested; postfix_blankline_requested = 0; } ps.decl_on_line = ps.in_decl; /* if we are in the middle of a * declaration, remember that fact for * proper comment indentation */ ps.ind_stmt = ps.in_stmt & ~ps.in_decl; /* next line should be * indented if we have not * completed this stmt and if * we are not in the middle of * a declaration */ ps.use_ff = false; ps.dumped_decl_indent = 0; *(e_lab = s_lab) = '\0'; /* reset buffers */ *(e_code = s_code) = '\0'; *(e_com = s_com) = '\0'; ps.ind_level = ps.i_l_follow; ps.paren_level = ps.p_l_follow; paren_target = -ps.paren_indents[ps.paren_level - 1]; not_first_line = 1; return; } int compute_code_target() { int target_col; target_col = ps.ind_size * ps.ind_level + 1; if (ps.paren_level) if (!lineup_to_parens) target_col += continuation_indent * ps.paren_level; else { int w; int t = paren_target; if ((w = count_spaces(t, s_code) - max_col) > 0 && count_spaces(target_col, s_code) <= max_col) { t -= w + 1; if (t > target_col) target_col = t; } else target_col = t; } else if (ps.ind_stmt) target_col += continuation_indent; return target_col; } int compute_label_target() { return ps.pcase ? (int) (case_ind * ps.ind_size) + 1 : *s_lab == '#' ? 1 : ps.ind_size * (ps.ind_level - label_offset) + 1; } /* * Copyright (C) 1976 by the Board of Trustees of the University of Illinois * * All rights reserved * * * NAME: fill_buffer * * FUNCTION: Reads one block of input into input_buffer * * HISTORY: initial coding November 1976 D A Willcox of CAC 1/7/77 A * Willcox of CAC Added check for switch back to partly full input * buffer from temporary buffer * */ void fill_buffer() { /* this routine reads stuff from the input */ char *p; int i; FILE *f = input; if (bp_save != 0) { /* there is a partly filled input buffer left */ buf_ptr = bp_save; /* dont read anything, just switch buffers */ buf_end = be_save; bp_save = be_save = 0; if (buf_ptr < buf_end) return; /* only return if there is really something in * this buffer */ } for (p = in_buffer;;) { if (p >= in_buffer_limit) { int size = (in_buffer_limit - in_buffer) * 2 + 10; int offset = p - in_buffer; in_buffer = (char *) realloc(in_buffer, size); if (in_buffer == NULL) errx(1, "input line too long"); p = in_buffer + offset; in_buffer_limit = in_buffer + size - 2; } if ((i = getc(f)) == EOF) { *p++ = ' '; *p++ = '\n'; had_eof = true; break; } *p++ = i; if (i == '\n') break; } buf_ptr = in_buffer; buf_end = p; if (p[-2] == '/' && p[-3] == '*') { if (in_buffer[3] == 'I' && strncmp(in_buffer, "/**INDENT**", 11) == 0) fill_buffer(); /* flush indent error message */ else { int com = 0; p = in_buffer; while (*p == ' ' || *p == '\t') p++; if (*p == '/' && p[1] == '*') { p += 2; while (*p == ' ' || *p == '\t') p++; if (p[0] == 'I' && p[1] == 'N' && p[2] == 'D' && p[3] == 'E' && p[4] == 'N' && p[5] == 'T') { p += 6; while (*p == ' ' || *p == '\t') p++; if (*p == '*') com = 1; else if (*p == 'O') { if (*++p == 'N') p++, com = 1; else if (*p == 'F' && *++p == 'F') p++, com = 2; } while (*p == ' ' || *p == '\t') p++; if (p[0] == '*' && p[1] == '/' && p[2] == '\n' && com) { if (s_com != e_com || s_lab != e_lab || s_code != e_code) dump_line(); if (!(inhibit_formatting = com - 1)) { n_real_blanklines = 0; postfix_blankline_requested = 0; prefix_blankline_requested = 0; suppress_blanklines = 1; } } } } } } if (inhibit_formatting) { p = in_buffer; do putc(*p, output); while (*p++ != '\n'); } return; } /* * Copyright (C) 1976 by the Board of Trustees of the University of Illinois * * All rights reserved * * * NAME: pad_output * * FUNCTION: Writes tabs and spaces to move the current column up to the desired * position. * * ALGORITHM: Put tabs and/or blanks into pobuf, then write pobuf. * * PARAMETERS: current integer The current column target * nteger The desired column * * RETURNS: Integer value of the new column. (If current >= target, no action is * taken, and current is returned. * * GLOBALS: None * * CALLS: write (sys) * * CALLED BY: dump_line * * HISTORY: initial coding November 1976 D A Willcox of CAC * */ int pad_output(current, target) /* writes tabs and blanks (if necessary) to * get the current output position up to the * target column */ int current; /* the current column value */ int target; /* position we want it at */ { int curr; /* internal column pointer */ int tcur; if (troff) fprintf(output, "\\h'|%dp'", (target - 1) * 7); else { if (current >= target) return (current); /* line is already long enough */ curr = current; while ((tcur = ((curr - 1) & tabmask) + tabsize + 1) <= target) { putc('\t', output); curr = tcur; } while (curr++ < target) putc(' ', output); /* pad with final blanks */ } return (target); } /* * Copyright (C) 1976 by the Board of Trustees of the University of Illinois * * All rights reserved * * * NAME: count_spaces * * FUNCTION: Find out where printing of a given string will leave the current * character position on output. * * ALGORITHM: Run thru input string and add appropriate values to current * position. * * RETURNS: Integer value of position after printing "buffer" starting in column * "current". * * HISTORY: initial coding November 1976 D A Willcox of CAC * */ int count_spaces(current, buffer) /* * this routine figures out where the character position will be after * printing the text in buffer starting at column "current" */ int current; char *buffer; { char *buf; /* used to look thru buffer */ int cur; /* current character counter */ cur = current; for (buf = buffer; *buf != '\0'; ++buf) { switch (*buf) { case '\n': case 014: /* form feed */ cur = 1; break; case '\t': cur = ((cur - 1) & tabmask) + tabsize + 1; break; case 010: /* backspace */ --cur; break; default: ++cur; break; } /* end of switch */ } /* end of for loop */ return (cur); } #if __STDC__ #include #else #include #endif int found_err; /* VARARGS2 */ void #if __STDC__ diag(int level, char *msg, ...) #else diag(level, msg, va_alist) int level; char *msg; va_dcl #endif { va_list ap; #if __STDC__ va_start(ap, msg); #else va_start(ap); #endif if (level) found_err = 1; if (output == stdout) { fprintf(stdout, "/**INDENT** %s@%d: ", level == 0 ? "Warning" : "Error", line_no); vfprintf(stdout, msg, ap); fprintf(stdout, " */\n"); } else { fprintf(stderr, "%s@%d: ", level == 0 ? "Warning" : "Error", line_no); vfprintf(stderr, msg, ap); fprintf(stderr, "\n"); } va_end(ap); } void writefdef(f, nm) struct fstate *f; int nm; { fprintf(output, ".ds f%c %s\n.nr s%c %d\n", nm, f->font, nm, f->size); } char * chfont(of, nf, s) struct fstate *of, *nf; char *s; { if (of->font[0] != nf->font[0] || of->font[1] != nf->font[1]) { *s++ = '\\'; *s++ = 'f'; if (nf->font[1]) { *s++ = '('; *s++ = nf->font[0]; *s++ = nf->font[1]; } else *s++ = nf->font[0]; } if (nf->size != of->size) { *s++ = '\\'; *s++ = 's'; if (nf->size < of->size) { *s++ = '-'; *s++ = '0' + of->size - nf->size; } else { *s++ = '+'; *s++ = '0' + nf->size - of->size; } } return s; } void parsefont(f, s0) struct fstate *f; char *s0; { char *s = s0; int sizedelta = 0; bzero(f, sizeof *f); while (*s) { if (isdigit(*s)) f->size = f->size * 10 + *s - '0'; else if (isupper(*s)) if (f->font[0]) f->font[1] = *s; else f->font[0] = *s; else if (*s == 'c') f->allcaps = 1; else if (*s == '+') sizedelta++; else if (*s == '-') sizedelta--; else { fprintf(stderr, "indent: bad font specification: %s\n", s0); exit(1); } s++; } if (f->font[0] == 0) f->font[0] = 'R'; if (bodyf.size == 0) bodyf.size = 11; if (f->size == 0) f->size = bodyf.size + sizedelta; else if (sizedelta > 0) f->size += bodyf.size; else f->size = bodyf.size - f->size; }