diff options
| -rw-r--r-- | src/nvim/arabic.c | 105 |
1 files changed, 41 insertions, 64 deletions
diff --git a/src/nvim/arabic.c b/src/nvim/arabic.c index 7880c66e1e..7d50aae7ab 100644 --- a/src/nvim/arabic.c +++ b/src/nvim/arabic.c @@ -96,7 +96,6 @@ // i -> initial // m -> medial // f -> final -// #define a_s_FATHATAN 0xfe70 #define a_m_TATWEEL_FATHATAN 0xfe71 #define a_s_DAMMATAN 0xfe72 @@ -246,7 +245,8 @@ #ifdef INCLUDE_GENERATED_DECLARATIONS # include "arabic.c.generated.h" #endif -// Returns True if c is an ISO-8859-6 shaped ARABIC letter (user entered). + +// Returns true if c is an ISO-8859-6 shaped ARABIC letter (user entered). static bool A_is_a(int cur_c) { switch (cur_c) { @@ -293,7 +293,7 @@ static bool A_is_a(int cur_c) return false; } -// Returns True if c is an Isolated Form-B ARABIC letter +// Returns true if c is an Isolated Form-B ARABIC letter static bool A_is_s(int cur_c) { switch (cur_c) { @@ -339,7 +339,7 @@ static bool A_is_s(int cur_c) return false; } -// Returns True if c is a Final shape of an ARABIC letter +// Returns true if c is a Final shape of an ARABIC letter static bool A_is_f(int cur_c) { switch (cur_c) { @@ -1259,12 +1259,11 @@ static int chg_c_f2m(int cur_c) tempc = a_m_YEH; break; - /* NOTE: these encodings are multi-positional, no ? - case a_f_LAM_ALEF_MADDA_ABOVE: - case a_f_LAM_ALEF_HAMZA_ABOVE: - case a_f_LAM_ALEF_HAMZA_BELOW: - case a_f_LAM_ALEF: - */ + // NOTE: these encodings are multi-positional, no ? + // case a_f_LAM_ALEF_MADDA_ABOVE: + // case a_f_LAM_ALEF_HAMZA_ABOVE: + // case a_f_LAM_ALEF_HAMZA_BELOW: + // case a_f_LAM_ALEF: default: tempc = 0; } @@ -1272,9 +1271,7 @@ static int chg_c_f2m(int cur_c) return tempc; } -/* - * Change shape - from Combination (2 char) to an Isolated - */ +// Change shape - from Combination (2 char) to an Isolated. static int chg_c_laa2i(int hid_c) { int tempc; @@ -1303,9 +1300,7 @@ static int chg_c_laa2i(int hid_c) return tempc; } -/* - * Change shape - from Combination-Isolated to Final - */ +// Change shape - from Combination-Isolated to Final. static int chg_c_laa2f(int hid_c) { int tempc; @@ -1334,9 +1329,7 @@ static int chg_c_laa2f(int hid_c) return tempc; } -/* - * Do "half-shaping" on character "c". Return zero if no shaping. - */ +// Do "half-shaping" on character "c". Return zero if no shaping. static int half_shape(int c) { if (A_is_a(c)) { @@ -1349,27 +1342,25 @@ static int half_shape(int c) return 0; } -/* - * Do Arabic shaping on character "c". Returns the shaped character. - * out: "ccp" points to the first byte of the character to be shaped. - * in/out: "c1p" points to the first composing char for "c". - * in: "prev_c" is the previous character (not shaped) - * in: "prev_c1" is the first composing char for the previous char - * (not shaped) - * in: "next_c" is the next character (not shaped). - */ +// Do Arabic shaping on character "c". Returns the shaped character. +// out: "ccp" points to the first byte of the character to be shaped. +// in/out: "c1p" points to the first composing char for "c". +// in: "prev_c" is the previous character (not shaped) +// in: "prev_c1" is the first composing char for the previous char +// (not shaped) +// in: "next_c" is the next character (not shaped). int arabic_shape(int c, int *ccp, int *c1p, int prev_c, int prev_c1, int next_c) { - /* Deal only with Arabic character, pass back all others */ + // Deal only with Arabic character, pass back all others if (!A_is_ok(c)) { return c; } - /* half-shape current and previous character */ + // half-shape current and previous character int shape_c = half_shape(prev_c); - /* Save away current character */ + // Save away current character int curr_c = c; int curr_laa = A_firstc_laa(c, *c1p); @@ -1383,7 +1374,7 @@ int arabic_shape(int c, int *ccp, int *c1p, int prev_c, int prev_c1, curr_c = chg_c_laa2i(curr_laa); } - /* Remove the composing character */ + // Remove the composing character *c1p = 0; } else if (!A_is_valid(prev_c) && A_is_valid(next_c)) { curr_c = chg_c_a2i(c); @@ -1397,8 +1388,8 @@ int arabic_shape(int c, int *ccp, int *c1p, int prev_c, int prev_c1, curr_c = chg_c_a2s(c); } - /* Sanity check -- curr_c should, in the future, never be 0. - * We should, in the future, insert a fatal error here. */ + // Sanity check -- curr_c should, in the future, never be 0. + // We should, in the future, insert a fatal error here. if (curr_c == NUL) { curr_c = c; } @@ -1406,12 +1397,12 @@ int arabic_shape(int c, int *ccp, int *c1p, int prev_c, int prev_c1, if ((curr_c != c) && (ccp != NULL)) { char_u buf[MB_MAXBYTES + 1]; - /* Update the first byte of the character. */ + // Update the first byte of the character (*mb_char2bytes)(curr_c, buf); *ccp = buf[0]; } - /* Return the shaped character */ + // Return the shaped character return curr_c; } @@ -1441,11 +1432,9 @@ bool arabic_maycombine(int two) return false; } -/* - * A_firstc_laa returns first character of LAA combination if it exists - * in: "c" base character - * in: "c1" first composing character - */ +// A_firstc_laa returns first character of LAA combination if it ex.ists +// in: "c" base character +// in: "c1" first composing character static int A_firstc_laa(int c, int c1) { if ((c1 != NUL) && (c == a_LAM) && !A_is_harakat(c1)) { @@ -1454,19 +1443,15 @@ static int A_firstc_laa(int c, int c1) return 0; } -/* - * A_is_harakat returns TRUE if 'c' is an Arabic Harakat character - * (harakat/tanween) - */ +// A_is_harakat returns true if 'c' is an Arabic Harakat character. +// (harakat/tanween) static bool A_is_harakat(int c) { return c >= a_FATHATAN && c <= a_SUKUN; } -/* - * A_is_iso returns TRUE if 'c' is an Arabic ISO-8859-6 character - * (alphabet/number/punctuation) - */ +// A_is_iso returns true if 'c' is an Arabic ISO-8859-6 character. +// (alphabet/number/punctuation) static bool A_is_iso(int c) { return (c >= a_HAMZA && c <= a_GHAIN) || @@ -1474,10 +1459,8 @@ static bool A_is_iso(int c) c == a_MINI_ALEF; } -/* - * A_is_formb returns TRUE if 'c' is an Arabic 10646-1 FormB character - * (alphabet/number/punctuation) - */ +// A_is_formb returns true if 'c' is an Arabic 10646-1 FormB character. +// (alphabet/number/punctuation) static bool A_is_formb(int c) { return (c >= a_s_FATHATAN && c <= a_s_DAMMATAN) || @@ -1486,27 +1469,21 @@ static bool A_is_formb(int c) c == a_BYTE_ORDER_MARK; } -/* - * A_is_ok returns TRUE if 'c' is an Arabic 10646 (8859-6 or Form-B) - */ +// A_is_ok returns true if 'c' is an Arabic 10646 (8859-6 or Form-B). static bool A_is_ok(int c) { return A_is_iso(c) || A_is_formb(c); } -/* - * A_is_valid returns TRUE if 'c' is an Arabic 10646 (8859-6 or Form-B) - * with some exceptions/exclusions - */ +// A_is_valid returns true if 'c' is an Arabic 10646 (8859-6 or Form-B), +// with some exceptions/exclusions. static bool A_is_valid(int c) { return A_is_ok(c) && !A_is_special(c); } -/* - * A_is_special returns TRUE if 'c' is not a special Arabic character. - * Specials don't adhere to most of the rules. - */ +// A_is_special returns true if 'c' is not a special Arabic character. +// Specials don't adhere to most of the rules. static bool A_is_special(int c) { return c == a_HAMZA || c == a_s_HAMZA; |